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                                                                    EXHIBIT 4.31

                               GUARANTEE AGREEMENT





                                     Between





                   The Hartford Financial Services Group, Inc.
                                 (as Guarantor)






                                       and







                            Wilmington Trust Company
                             (as Guarantee Trustee)







                                   dated as of








                                October 26, 2001


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                                TABLE OF CONTENTS
                                -----------------

                                                                            Page
                                                                            ----
                                    ARTICLE 1

                                   DEFINITIONS

SECTION 1.1     Definitions....................................................1

                                    ARTICLE 2

                               TRUST INDENTURE ACT

SECTION 2.1     Trust Indenture Act; Application...............................5
SECTION 2.2     List of Holders................................................5
SECTION 2.3     Reports by the Guarantee Trustee...............................5
SECTION 2.4     Periodic Reports to Guarantee Trustee..........................5
SECTION 2.5     Evidence of Compliance with Conditions Precedent...............6
SECTION 2.6     Events of Default; Waiver......................................6
SECTION 2.7     Event of Default; Notice.......................................6
SECTION 2.8     Conflicting Interests..........................................6

                                    ARTICLE 3

               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

SECTION 3.1     Powers and Duties of the Guarantee Trustee.....................7
SECTION 3.2     Certain Rights of Guarantee Trustee............................8
SECTION 3.3     Indemnity.....................................................10

                                    ARTICLE 4

                                GUARANTEE TRUSTEE

SECTION 4.1     Guarantee Trustee; Eligibility................................10
SECTION 4.2     Appointment, Removal and Resignation of the Guarantee Trustee.11

                                    ARTICLE 5

                                    GUARANTEE

SECTION 5.1     Guarantee.....................................................12
SECTION 5.2     Waiver of Notice and Demand...................................12
SECTION 5.3     Obligations Not Affected......................................12
SECTION 5.4     Rights of Holders.............................................13
SECTION 5.5     Guarantee of Payment..........................................13

                                       i

                                TABLE OF CONTENTS
                                -----------------
                                   (continued)


SECTION 5.6     Subrogation...................................................13
SECTION 5.7     Independent Obligations.......................................14

                                    ARTICLE 6

                           COVENANTS AND SUBORDINATION

SECTION 6.1     Subordination.................................................14
SECTION 6.2     Pari Passu Guarantees.........................................14

                                    ARTICLE 7

                                   TERMINATION

SECTION 7.1     Termination...................................................14

                                    ARTICLE 8

                                  MISCELLANEOUS

SECTION 8.1     Successors and Assigns........................................15
SECTION 8.2     Amendments....................................................15
SECTION 8.3     Notices.......................................................15
SECTION 8.4     Benefit.......................................................16
SECTION 8.5     Interpretation................................................16
SECTION 8.6     GOVERNING LAW.................................................17


                                       ii

                               GUARANTEE AGREEMENT
                               -------------------


         This GUARANTEE AGREEMENT, dated as of October 26, 2001, is executed and
delivered by The Hartford Financial Services Group, Inc., a Delaware corporation
(the "Guarantor"),  and Wilmington Trust Company, a Delaware banking corporation
organized  under the laws of the State of Delaware,  as trustee (the  "Guarantee
Trustee"),  for the benefit of the Holders (as defined herein) from time to time
of the  Preferred  Securities  (as defined  herein) of Hartford  Capital  III, a
Delaware statutory business trust (the "Issuer").

         WHEREAS,  pursuant  to an Amended and  Restated  Trust  Agreement  (the
"Trust  Agreement"),  dated as of October 26, 2001 among the  Issuer's  Trustees
named therein, the Guarantor, as Depositor, and the Holders from time to time of
undivided  beneficial  interests  in the  assets of the  Issuer,  the  Issuer is
issuing up to $575,000,000  aggregate liquidation preference amount of its 7.45%
Preferred  Securities,  Series  A  (liquidation  preference  $25  per  preferred
security)  (the  "Preferred   Securities")   representing   preferred  undivided
beneficial  interests in the assets of the Issuer and having the terms set forth
in the Trust Agreement;

         WHEREAS,  the Preferred Securities will be issued by the Issuer and the
proceeds  thereof,  together with the proceeds from the issuance of the Issuer's
Common  Securities (as defined  below),  will be used to purchase the Debentures
(as defined in the Trust  Agreement)  of the  Guarantor  which will be deposited
with Wilmington Trust Company, as Property Trustee under the Trust Agreement, as
trust assets; and

         WHEREAS, as incentive for the Holders to purchase Preferred  Securities
the Guarantor desires  irrevocably and  unconditionally  to agree, to the extent
set  forth  herein,  to pay to the  Holders  of  the  Preferred  Securities  the
Guarantee Payments (as defined herein) and to make certain other payments on the
terms and conditions set forth herein.

         NOW,  THEREFORE,  in  consideration  of the  purchase by each Holder of
Preferred  Securities,  which purchase the Guarantor hereby agrees shall benefit
the Guarantor,  the Guarantor executes and delivers this Guarantee Agreement for
the benefit of the Holders from time to time of the Preferred Securities.




                                    ARTICLE 1
                                   DEFINITIONS

SECTION 1.1       Definitions.
                  -----------

         As used in this Guarantee  Agreement,  the terms set forth below shall,
unless the context otherwise requires, have the following meanings.  Capitalized
or otherwise  defined terms used but not otherwise defined herein shall have the
meanings  assigned to such terms in the Trust Agreement as in effect on the date
hereof.

         "Affiliate" of any specified  Person means any other Person directly or
          ---------
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control with such specified Person, provided,  however, that an Affiliate of the
                                    --------   -------
Guarantor  shall not be deemed to include the Issuer.  For the  purposes of this
definition,  "control" when used with respect to any specified  Person means the
              -------
power to  direct  the  management  and  policies  of such  Person,  directly  or
indirectly,  whether through the ownership of voting securities,  by contract or
otherwise;   and  the  terms   "controlling"   and  "controlled"  have  meanings
                                -----------          ----------
correlative to the foregoing.

         "Common Securities" means the securities representing common beneficial
          -----------------
interests in the assets of the Issuer.

         "Debt" means, with respect to any Person, whether recourse is to all or
          ----
a portion of the assets of such Person and whether or not contingent,  (i) every
                                                                        -
obligation  of such Person for money  borrowed;  (ii) every  obligation  of such
                                                  --
Person  evidenced  by bonds,  debentures,  notes or other  similar  instruments,
including  obligations  incurred in connection with the acquisition of property,
assets or businesses;  (iii) every reimbursement  obligation of such Person with
                        ---
respect to letters of credit,  bankers' acceptances or similar facilities issued
for the account of such Person;  (iv) every  obligation of such Person issued or
                                  --
assumed as the deferred  purchase  price of property or services (but  excluding
trade accounts payable or accrued  liabilities arising in the ordinary course of
business);  (v) every  capital lease  obligation of such Person;  and (vi) every
             -                                                         --
obligation of the type referred to in clauses (i) through (v) of another  Person
and all dividends of another Person the payment of which,  in either case,  such
Person has guaranteed or is responsible  or liable,  directly or indirectly,  as
obligor or otherwise.

         "Event of  Default"  means a  default  by the  Guarantor  on any of its
          -----------------
payment or other obligations under this Guarantee Agreement;  provided, however,
                                                              --------  -------
that, except with respect to a default in payment of any Guarantee Payments, the
Guarantor  shall have  received  notice of default and shall not have cured such
default within 60 days after receipt of such notice.

                                     - 2 -


         "Guarantee  Payments"  means the following  payments or  distributions,
          -------------------
without duplication, with respect to the Preferred Securities, to the extent not
paid or  made  by or on  behalf  of the  Issuer:  (i)  any  accrued  and  unpaid
                                                   -
Distributions  (as  defined in the Trust  Agreement)  required to be paid on the
Preferred  Securities,  to the  extent  the  Issuer  shall  have  funds  on hand
available therefor,  (ii) the redemption price, including all accrued and unpaid
                      --
Distributions to the date of redemption (the "Redemption  Price"),  with respect
to the Preferred  Securities  called for  redemption by the Issuer to the extent
the  Issuer  shall  have  funds on hand  available  therefor,  and (iii)  upon a
                                                                    ---
voluntary or involuntary  termination,  winding-up or liquidation of the Issuer,
unless  Debentures  are  distributed  to the  Holders,  the  lesser  of (a)  the
                                                                         -
aggregate of the  liquidation  preference  of $25 per  Preferred  Security  plus
accrued and unpaid  Distributions  on the  Preferred  Securities  to the date of
payment  and (b) the  amount of assets of the  Issuer  remaining  available  for
              -
distribution  to Holders in  liquidation  of the  Issuer  (in either  case,  the
"Liquidation Distribution").

         "Guarantee  Trustee"  means  Wilmington  Trust  Company,  acting in its
          ------------------
capacity as the trustee  hereunder until a Successor  Guarantee Trustee has been
appointed  and has  accepted  such  appointment  pursuant  to the  terms of this
Guarantee Agreement and thereafter means each such Successor Guarantee Trustee.

         "Holder"  means any holder,  as  registered on the books and records of
          ------
the Issuer, of any Preferred Securities;  provided, however, that in determining
                                          --------  -------
whether the holders of the  requisite  percentage of Preferred  Securities  have
given any  request,  notice,  consent or waiver  hereunder,  "Holder"  shall not
include the Guarantor,  the Guarantee  Trustee or any Affiliate of the Guarantor
or the Guarantee Trustee.

         "Indenture" means the Junior Subordinated Indenture dated as of October
          ---------
30, 1996,  between the Guarantor and Wilmington  Trust Company,  as Trustee,  as
supplemented or amended from time to time.

         "List of Holders" has the meaning specified in Section 2.2(a).
          ---------------

         "Majority in liquidation preference of the Securities" means, except as
          ----------------------------------------------------
provided by the Trust Indenture Act, a vote by the Holder(s),  voting separately
as a  class,  of  more  than  50%  of the  liquidation  preference  of all  then
outstanding Preferred Securities issued by the Issuer.

         "Officers'   Certificate"   means,   with  respect  to  any  Person,  a
          -----------------------
certificate signed by the Chairman and Chief Executive  Officer,  President or a
Vice  President,  and by the  Treasurer,  an Associate  Treasurer,  an Assistant
Treasurer,  the  Controller,  the  Secretary or an  Assistant  Secretary of such
Person,  and  delivered to the  Guarantee  Trustee.  Any  Officers'  Certificate
delivered with respect to compliance  with a condition or covenant  provided for
in this Guarantee Agreement shall include:

                                     - 3 -


                  (a) a  statement  that  each  officer  signing  the  Officers'
         Certificate  has read the  covenant or  condition  and the  definitions
         relating thereto;

                  (b)  a  brief  statement  of  the  nature  and  scope  of  the
         examination  or  investigation  undertaken by each officer in rendering
         the Officers' Certificate;

                  (c)  a  statement   that  each  such  officer  has  made  such
         examination  or  investigation  as,  in  such  officer's  opinion,   is
         necessary to enable such  officer to express an informed  opinion as to
         whether or not such covenant or condition has been complied with; and

                  (d) a  statement  as to  whether,  in the opinion of each such
         officer, such condition or covenant has been complied with.

         "Person" means a legal person,  including any individual,  corporation,
          ------
estate, partnership,  joint venture,  association,  joint stock company, limited
liability  company,  trust,  unincorporated  association,  or  government or any
agency or political subdivision thereof, or any other entity of whatever nature.

         "Responsible Officer" means, with respect to the Guarantee Trustee, any
          -------------------
Senior Vice  President,  any Vice President,  any Assistant Vice President,  the
Secretary,  any Assistant Secretary, the Treasurer, any Assistant Treasurer, any
Trust  Officer or Assistant  Trust Officer or any other officer of the Corporate
Trust  Department  of the Guarantee  Trustee  customarily  performing  functions
similar  to  those  performed  by any  of the  above  designated  officers  with
responsibility over the administration of the Trust.

         "Senior  Debt"  means  the  principal  of (and  premium,  if  any)  and
          ------------
interest,  if any  (including  interest  accruing  on or after the filing of any
petition in bankruptcy or for  reorganization  relating to the Guarantor whether
or not such claim for post-petition interest is allowed in such proceeding),  on
Debt,  whether  incurred on or prior to the date of this Guarantee or thereafter
incurred,  unless, in the instrument creating or evidencing the same or pursuant
to which the same is outstanding,  it is provided that such  obligations are not
superior  in right of  payment to the  Guarantee  or to other Debt which is pari
passu with, or subordinated to, the Guarantee;  provided,  however,  that Senior
                                                --------   -------
Debt shall not be deemed to include,  without  limitation,  (a) the 7.70% Junior
                                                             -
Subordinated Deferrable Interest Debentures, Series A, Due February 28, 2015, of
the  Guarantor,  (b) any Debt of the  Guarantor  which when incurred and without
                  -
respect to any election under Section  1111(b) of the  Bankruptcy  Reform Act of
1978, was without  recourse to the  Guarantor,  (c) any Debt of the Guarantor to
                                                 -
any of its  Subsidiaries,  (d) Debt to any  employee of the  Guarantor,  (e) any
                            -                                             -
liability for taxes,  (f) Debt or other monetary  obligations to trade creditors
                       -
created or assumed by the Guarantor or any of its  Subsidiaries  in the ordinary
course of business in  connection  with the  obtaining  of goods,  materials  or
services, (g) Debt issued under the Indenture and (h) the Guarantee.
           -                                       -

                                     - 4 -


         "Successor  Guarantee  Trustee"  means a  successor  Guarantee  Trustee
          -----------------------------
possessing the qualifications to act as Guarantee Trustee under Section 4.1.

         "Trust  Indenture  Act"  means  the  Trust  Indenture  Act of 1939,  as
          ---------------------
amended.

                                    ARTICLE 2
                               TRUST INDENTURE ACT

SECTION 2.1       Trust Indenture Act; Application.
                  --------------------------------

         (a) This Guarantee  Agreement is subject to the provisions of the Trust
Indenture  Act that are  required  to be part of this  Guarantee  Agreement  and
shall, to the extent applicable, be governed by such provisions.

         (b) If and to the extent that any provision of this Guarantee Agreement
limits,  qualifies or conflicts  with the duties imposed by Sections 310 to 317,
inclusive, of the Trust Indenture Act, such imposed duties shall control.

SECTION 2.2       List of Holders.
                  ---------------

         (a) The  Guarantor  shall  furnish  or  cause  to be  furnished  to the
Guarantee  Trustee (i)  semiannually,  on or before February 15 and August 15 of
                    -
each year, a list, in such form as the Guarantee Trustee may reasonably require,
of the names and  addresses of the Holders  ("List of Holders") as of a date not
more than 15 days prior to the delivery thereof, and (ii) at such other times as
                                                      --
the Guarantee  Trustee may request in writing,  within 30 days after the receipt
by the  Guarantor of any such  request,  a List of Holders as of a date not more
than 15 days  prior to the time  such  list is  furnished,  in each  case to the
extent such  information is in the possession or control of the Guarantor and is
not identical to a previously supplied list of Holders or has not otherwise been
received by the Guarantee Trustee in its capacity as such. The Guarantee Trustee
may destroy any List of Holders  previously given to it on receipt of a new List
of Holders.

         (b) The  Guarantee  Trustee  shall  comply with its  obligations  under
Section 311(a), Section 311(b) and Section 312(b) of the Trust Indenture Act, as
applicable.

SECTION 2.3       Reports by the Guarantee Trustee.
                  ---------------------------------

         Within 60 days after July 1 of each year,  the Guarantee  Trustee shall
provide to the Holders  such reports as are required by Section 313 of the Trust
Indenture Act, if any, in the form and in the manner  provided by Section 313 of
the Trust  Indenture  Act.  The  Guarantee  Trustee  shall also  comply with the
requirements of Section 313(d) of the Trust Indenture Act.

                                     - 5 -


SECTION 2.4       Periodic Reports to Guarantee Trustee.
                  -------------------------------------

         The Guarantor  shall provide to the Guarantee  Trustee,  the Securities
and Exchange Commission and the Holders such documents, reports and information,
if any, as required by Section 314 of the Trust Indenture Act and the compliance
certificate  required by Section 314 of the Trust  Indenture Act in the form, in
the manner and at the times required by Section 314 of the Trust Indenture Act.

SECTION 2.5       Evidence of Compliance with Conditions Precedent.
                  ------------------------------------------------

         The Guarantor  shall provide to the Guarantee  Trustee such evidence of
compliance  with  such  conditions  precedent,  if  any,  provided  for in  this
Guarantee  Agreement  that  relate to any of the  matters  set forth in  Section
314(c) of the Trust  Indenture Act. Any  certificate  or opinion  required to be
given by an officer pursuant to Section 314(c)(1) may be given in the form of an
Officers' Certificate.

SECTION 2.6       Events of Default; Waiver.
                  -------------------------

         The Holders of a Majority in  liquidation  preference  of the Preferred
Securities  may,  by vote,  on behalf of the  Holders,  waive any past  Event of
Default and its consequences.  Upon such waiver, any such Event of Default shall
cease to exist,  and any Event of Default  arising  therefrom shall be deemed to
have been cured,  for every  purpose of this  Guarantee  Agreement,  but no such
waiver shall extend to any  subsequent  or other  default or Event of Default or
impair any right consequent therefrom.

SECTION 2.7       Event of Default; Notice.
                  ------------------------

         (a) The Guarantee Trustee shall, within 90 days after the occurrence of
an Event of Default,  transmit  by mail,  first class  postage  prepaid,  to the
Holders, notices of all Events of Default known to the Guarantee Trustee, unless
such defaults have been cured before the giving of such notice,  provided, that,
except in the case of a default  in the  payment  of a  Guarantee  Payment,  the
Guarantee  Trustee shall be protected in withholding  such notice if and so long
as the Board of  Directors,  the  executive  committee  or a trust  committee of
directors  and/or  Responsible  Officers of the Guarantee  Trustee in good faith
determines  that the  withholding  of such  notice  is in the  interests  of the
Holders.

         (b) The Guarantee  Trustee shall not be deemed to have knowledge of any
Event of Default  unless the  Guarantee  Trustee  shall  have  received  written
notice,  or a Responsible  Officer charged with the  administration of the Trust
Agreement shall have obtained written notice, of such Event of Default.

                                     - 6 -


SECTION 2.8       Conflicting Interests.
                  ---------------------

         The Trust  Agreement  shall be deemed to be  specifically  described in
this  Guarantee  Agreement  for the purposes of clause (i) of the first  proviso
contained in Section 310(b) of the Trust Indenture Act.

                                    ARTICLE 3
               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

SECTION 3.1       Powers and Duties of the Guarantee Trustee.
                  ------------------------------------------

         (a) This Guarantee Agreement shall be held by the Guarantee Trustee for
the benefit of the Holders,  and the  Guarantee  Trustee shall not transfer this
Guarantee  Agreement to any Person except a Holder  exercising his or her rights
pursuant to Section 5.04(iv) or to a Successor  Guarantee  Trustee on acceptance
by such  Successor  Guarantee  Trustee of its  appointment  to act as  Successor
Guarantee Trustee.  The right, title and interest of the Guarantee Trustee shall
automatically vest in any Successor  Guarantee Trustee,  upon acceptance by such
Successor Guarantee Trustee of its appointment  hereunder,  and such vesting and
cessation of title shall be effective whether or not conveyancing documents have
been  executed  and  delivered  pursuant to the  appointment  of such  Successor
Guarantee Trustee.

         (b)  If an  Event  of  Default  has  occurred  and is  continuing,  the
Guarantee Trustee shall enforce this Guarantee  Agreement for the benefit of the
Holders.

         (c) The  Guarantee  Trustee,  before  the  occurrence  of any  Event of
Default  and after the curing of all Events of Default  that may have  occurred,
shall  undertake  to perform only such duties as are  specifically  set forth in
this  Guarantee  Agreement,  and no  implied  covenants  shall be read into this
Guarantee  Agreement against the Guarantee Trustee.  In case an Event of Default
has occurred  (that has not been cured or waived  pursuant to Section 2.6),  the
Guarantee  Trustee shall  exercise such of the rights and powers vested in it by
this  Guarantee  Agreement,  and use the same  degree  of care and  skill in its
exercise  thereof,  as  a  prudent  person  would  exercise  or  use  under  the
circumstances in the conduct of his or her own affairs.

         (d) No  provision  of this  Guarantee  Agreement  shall be construed to
relieve the Guarantee Trustee from liability for its own negligent  action,  its
own negligent failure to act or its own willful misconduct, except that:

                  (i) prior to the  occurrence of any Event of Default and after
         the  curing or  waiving  of all such  Events of  Default  that may have
         occurred:

                                     - 7 -


                           (A)  the  duties  and  obligations  of the  Guarantee
                  Trustee shall be determined  solely by the express  provisions
                  of this Guarantee  Agreement,  and the Guarantee Trustee shall
                  not be liable  except for the  performance  of such duties and
                  obligations  as are  specifically  set forth in this Guarantee
                  Agreement; and

                           (B) in the  absence  of bad  faith on the part of the
                  Guarantee  Trustee,  the  Guarantee  Trustee may  conclusively
                  rely, as to the truth of the statements and the correctness of
                  the  opinions  expressed  therein,  upon any  certificates  or
                  opinions  furnished to the Guarantee Trustee and conforming to
                  the requirements of this Guarantee Agreement;  but in the case
                  of any such  certificates  or opinions  that by any  provision
                  hereof or of the Trust Indenture Act are specifically required
                  to be  furnished  to  the  Guarantee  Trustee,  the  Guarantee
                  Trustee shall be under a duty to examine the same to determine
                  whether  or not  they  conform  to the  requirements  of  this
                  Guarantee Agreement;

                  (ii) the  Guarantee  Trustee shall not be liable for any error
         of  judgment  made  in  good  faith  by a  Responsible  Officer  of the
         Guarantee Trustee, unless it shall be proved that the Guarantee Trustee
         was  negligent  in  ascertaining  the  pertinent  facts upon which such
         judgment was made;

                  (iii) the  Guarantee  Trustee shall not be liable with respect
         to any  action  taken or  omitted  to be  taken by it in good  faith in
         accordance  with  the  direction  of the  Holders  of not  less  than a
         Majority in liquidation preference of the Preferred Securities relating
         to the time,  method and place of  conducting  any  proceeding  for any
         remedy available to the Guarantee  Trustee,  or exercising any trust or
         power  conferred  upon  the  Guarantee  Trustee  under  this  Guarantee
         Agreement; and

                  (iv) no provision of this  Guarantee  Agreement  shall require
         the  Guarantee  Trustee  to expend  or risk its own funds or  otherwise
         incur  personal  financial  liability in the  performance of any of its
         duties  or in the  exercise  of any of its  rights  or  powers,  if the
         Guarantee Trustee shall have reasonable  grounds for believing that the
         repayment of such funds or liability  is not  reasonably  assured to it
         under the  terms of this  Guarantee  Agreement  or  adequate  indemnity
         against such risk or liability is not reasonably assured to it.

                                     - 8 -


SECTION 3.2       Certain Rights of Guarantee Trustee.
                  -----------------------------------

         (a) Subject to the provisions of Section 3.01:

                  (i)  The  Guarantee  Trustee  may  rely  and  shall  be  fully
protected in acting or refraining from acting upon any resolution,  certificate,
statement,  instrument,  opinion, report, notice, request,  direction,  consent,
order, bond,  debenture,  note, other evidence of indebtedness or other paper or
document believed by it to be genuine and to have been signed, sent or presented
by the proper party or parties.

                  (ii) Any  direction or act of the  Guarantor  contemplated  by
this  Guarantee  Agreement  shall  be  sufficiently  evidenced  by an  Officers'
Certificate unless otherwise prescribed herein.

                  (iii)  Whenever,  in  the  administration  of  this  Guarantee
Agreement, the Guarantee Trustee shall deem it desirable that a matter be proved
or  established  before  taking,  suffering  or  omitting  to  take  any  action
hereunder,  the Guarantee Trustee (unless other evidence is herein  specifically
prescribed) may, in the absence of bad faith on its part,  request and rely upon
an Officers'  Certificate which, upon receipt of such request from the Guarantee
Trustee, shall be promptly delivered by the Guarantor.

                  (iv) The Guarantee Trustee may consult with legal counsel, and
the  written  advice or  opinion  of such legal  counsel  with  respect to legal
matters shall be full and complete  authorization  and  protection in respect of
any action taken,  suffered or omitted to be taken by it hereunder in good faith
and in accordance  with such advice or opinion.  Such legal counsel may be legal
counsel  to  the  Guarantor  or  any of  its  Affiliates  and  may be one of its
employees.  The  Guarantee  Trustee  shall  have  the  right at any time to seek
instructions  concerning the administration of this Guarantee Agreement from any
court of competent jurisdiction.

                  (v) The  Guarantee  Trustee  shall be under no  obligation  to
exercise any of the rights or powers vested in it by this Guarantee Agreement at
the request or direction of any Holder,  unless such Holder shall have  provided
to the Guarantee Trustee such adequate security and indemnity as would satisfy a
reasonable person in the position of the Guarantee  Trustee,  against the costs,
expenses (including  attorneys' fees and expenses) and liabilities that might be
incurred by it in  complying  with such  request or  direction,  including  such
reasonable advances as may be requested by the Guarantee Trustee; provided that,
nothing  contained  in this  Section  3.2(a)(v)  shall be taken to  relieve  the
Guarantee Trustee, upon the occurrence of an Event of Default, of its obligation
to exercise the rights and powers vested in it by this Guarantee Agreement.

                  (vi)  The  Guarantee  Trustee  shall  not be bound to make any
investigation  into the facts or matters stated in any resolution,  certificate,
statement,  instrument,

                                     - 9 -


opinion,  report, notice, request,  direction,  consent, order, bond, debenture,
note,  other  evidence  of  indebtedness  or other  paper or  document,  but the
Guarantee  Trustee,  in  its  discretion,  may  make  such  further  inquiry  or
investigation into such facts or matters as it may see fit.

                  (vii) The  Guarantee  Trustee may execute any of the trusts or
powers  hereunder  or perform  any duties  hereunder  either  directly  or by or
through  its  agents  or  attorneys,  and the  Guarantee  Trustee  shall  not be
responsible  for any  misconduct  or negligence on the part of any such agent or
attorney appointed with due care by it hereunder.

                  (viii)  Whenever  in  the  administration  of  this  Guarantee
Agreement the Guarantee Trustee shall deem it desirable to receive  instructions
with  respect  to  enforcing  any  remedy  or right or taking  any other  action
hereunder,  the Guarantee Trustee (A) may request instructions from the Holders,
                                   -
(B) may refrain from  enforcing such remedy or right or taking such other action
 -
until such  instructions  are received,  and (C) shall be protected in acting in
                                              -
accordance with such instructions.

         (b) No provision of this Guarantee  Agreement shall be deemed to impose
any duty or obligation  on the  Guarantee  Trustee to perform any act or acts or
exercise any right, power, duty or obligation  conferred or imposed on it in any
jurisdiction  in which it shall be illegal,  or in which the  Guarantee  Trustee
shall be  unqualified  or  incompetent  in accordance  with  applicable  law, to
perform  any such act or acts or to  exercise  any such  right,  power,  duty or
obligation.  No permissive power or authority available to the Guarantee Trustee
shall  be  construed  to be a duty to act in  accordance  with  such  power  and
authority.

SECTION 3.3       Indemnity.
                  ---------

         The Guarantor  agrees to indemnify  the  Guarantee  Trustee for, and to
hold it  harmless  against,  any loss,  liability  or expense  incurred  without
negligence or bad faith on the part of the Guarantee Trustee,  arising out of or
in connection with the acceptance or administration of this Guarantee Agreement,
including  the costs and  expenses  of  defending  itself  against  any claim or
liability in connection with the exercise or performance of any of its powers or
duties  hereunder.  The  Guarantee  Trustee  will not claim or exact any lien or
charge on any Guarantee  Payments as a result of any amount due to it under this
Guarantee Agreement.

                                     - 10 -


                                    ARTICLE 4
                                GUARANTEE TRUSTEE

SECTION 4.1       Guarantee Trustee; Eligibility.
                  ------------------------------

         (a) There shall at all times be a Guarantee Trustee which shall:

                  (i) not be an Affiliate of the Guarantor; and

                  (ii)  be a  Person  that is  eligible  pursuant  to the  Trust
         Indenture Act to act as such and has a combined  capital and surplus of
         at  least  50  million  U.S.  dollars  ($50,000,000),  and  shall  be a
         corporation  meeting the  requirements  of Section  310(c) of the Trust
         Indenture Act. If such  corporation  publishes  reports of condition at
         least  annually,  pursuant  to  law  or  to  the  requirements  of  the
         supervising  or  examining  authority,  then,  for the purposes of this
         Section and to the extent  permitted  by the Trust  Indenture  Act, the
         combined capital and surplus of such corporation  shall be deemed to be
         its combined capital and surplus as set forth in its most recent report
         of condition so published.

         (b) If at any time the Guarantee  Trustee shall cease to be eligible to
so act under Section 4.1(a),  the Guarantee Trustee shall immediately  resign in
the manner and with the effect set out in Section 4.2(c).

         (c) If the  Guarantee  Trustee has or shall  acquire  any  "conflicting
interest"  within the meaning of Section 310(b) of the Trust  Indenture Act, the
Guarantee Trustee and Guarantor shall in all respects comply with the provisions
of Section 310(b) of the Trust Indenture Act.

SECTION 4.2       Appointment, Removal and Resignation of the Guarantee Trustee.
                  -------------------------------------------------------------

         (a) Subject to Section 4.2(b),  the Guarantee  Trustee may be appointed
or removed without cause at any time by the Guarantor.

         (b) The  Guarantee  Trustee  shall  not be  removed  until a  Successor
Guarantee  Trustee has been  appointed  and has  accepted  such  appointment  by
written instrument executed by such Successor Guarantee Trustee and delivered to
the Guarantor.

         (c) The Guarantee Trustee appointed hereunder shall hold office until a
Successor  Guarantee  Trustee shall have been  appointed or until its removal or
resignation.  The  Guarantee  Trustee may resign from office  (without  need for
prior or subsequent  accounting)  by an  instrument  in writing  executed by the
Guarantee  Trustee and delivered to the Guarantor,  which  resignation shall not
take effect  until a Successor  Guarantee  Trustee  has been  appointed  and has
accepted such  appointment  by instrument

                                     - 11 -


in writing  executed by such  Successor  Guarantee  Trustee and delivered to the
Guarantor and the resigning Guarantee Trustee.

         (d) If no Successor  Guarantee  Trustee  shall have been  appointed and
accepted  appointment  as  provided  in this  Section  4.2  within 60 days after
delivery  to the  Guarantor  of an  instrument  of  resignation,  the  resigning
Guarantee  Trustee may petition,  at the expense of the Guarantor,  any court of
competent  jurisdiction for appointment of a Successor  Guarantee Trustee.  Such
court may  thereupon,  after  prescribing  such  notice,  if any, as it may deem
proper, appoint a Successor Guarantee Trustee.

                                    ARTICLE 5
                                    GUARANTEE

SECTION 5.1       Guarantee.
                  ---------

         The Guarantor irrevocably and unconditionally  agrees to pay in full to
the Holders the Guarantee Payments (without  duplication of amounts  theretofore
paid by or on behalf of the Issuer), as and when due, regardless of any defense,
right of set-off  or  counterclaim  which the  Issuer  may have or  assert.  The
Guarantor's  obligation  to make a Guarantee  Payment may be satisfied by direct
payment of the  required  amounts by the  Guarantor to the Holders or by causing
the Issuer to pay such amounts to the Holders.

SECTION 5.2       Waiver of Notice and Demand.
                  ---------------------------

         The  Guarantor  hereby  waives  notice of  acceptance  of the Guarantee
Agreement  and of any  liability to which it applies or may apply,  presentment,
demand  for  payment,  any  right to  require a  proceeding  first  against  the
Guarantee  Trustee,  Issuer or any other Person  before  proceeding  against the
Guarantor,  protest,  notice  of  nonpayment,  notice  of  dishonor,  notice  of
redemption and all other notices and demands.

SECTION 5.3       Obligations Not Affected.
                  ------------------------

         The  obligations,  covenants,  agreements  and duties of the  Guarantor
under this Guarantee Agreement shall in no way be affected or impaired by reason
of the happening from time to time of any of the following:

                  (a) the release or waiver,  by operation of law or  otherwise,
         of the  performance  or  observance  by the  Issuer of any  express  or
         implied  agreement,   covenant,  term  or  condition  relating  to  the
         Preferred Securities to be performed or observed by the Issuer;

                  (b) the extension of time for the payment by the Issuer of all
         or any portion of the  Distributions  (other than an  extension of time
         for payment of

                                     - 12 -


         Distributions  that results from the extension of any interest  payment
         period on the Debentures as so provided in the  Indenture),  Redemption
         Price,  Liquidation  Distribution  or any other sums payable  under the
         terms of the  Preferred  Securities  or the  extension  of time for the
         performance  of any  other  obligation  under,  arising  out of,  or in
         connection with, the Preferred Securities;

                  (c) any failure,  omission,  delay or lack of diligence on the
         part  of  the  Holders  to  enforce,  assert  or  exercise  any  right,
         privilege,  power or remedy  conferred  on the Holders  pursuant to the
         terms of the  Preferred  Securities,  or any  action on the part of the
         Issuer granting indulgence or extension of any kind;

                  (d) the  voluntary or  involuntary  liquidation,  dissolution,
         sale  of  any   collateral,   receivership,   insolvency,   bankruptcy,
         assignment for the benefit of creditors,  reorganization,  arrangement,
         composition or  readjustment  of debt of, or other similar  proceedings
         affecting, the Issuer or any of the assets of the Issuer;

                  (e) any  invalidity  of,  or  defect  or  deficiency  in,  the
         Preferred Securities;

                  (f) the settlement or compromise of any obligation  guaranteed
         hereby or hereby incurred; or

                  (g) any other  circumstance  whatsoever  that might  otherwise
         constitute a legal or equitable discharge or defense of a guarantor, it
         being  the  intent  of this  Section  5.3 that the  obligations  of the
         Guarantor  hereunder shall be absolute and unconditional  under any and
         all circumstances.

There  shall be no  obligation  of the  Holders to give notice to, or obtain the
consent of, the Guarantor with respect to the happening of any of the foregoing.

SECTION 5.4       Rights of Holders.
                  -----------------

         The Guarantor expressly acknowledges that: (i) this Guarantee Agreement
                                                     -
will be deposited  with the Guarantee  Trustee to be held for the benefit of the
Holders;  (ii) the  Guarantee  Trustee has the right to enforce  this  Guarantee
           --
Agreement  on  behalf  of the  Holders;  (iii)  the  Holders  of a  Majority  in
                                          ---
liquidation  preference of the Preferred Securities have the right to direct the
time,  method and place of conducting any proceeding for any remedy available to
the Guarantee  Trustee in respect of this Guarantee  Agreement or exercising any
trust or power  conferred  upon  the  Guarantee  Trustee  under  this  Guarantee
Agreement; and (iv) any Holder may institute a legal proceeding directly against
                --
the  Guarantor to enforce its rights  under this  Guarantee  Agreement,  without
first instituting a legal proceeding against the Guarantee  Trustee,  the Issuer
or any other Person.

                                     - 13 -


SECTION 5.5       Guarantee of Payment.
                  --------------------

         This  Guarantee  Agreement  creates a  guarantee  of payment and not of
collection. This Guarantee Agreement will not be discharged except by payment of
the Guarantee Payments in full (without  duplication of amounts theretofore paid
by the Issuer) or upon  distribution of Debentures to Holders as provided in the
Trust Agreement.

SECTION 5.6       Subrogation.
                  -----------

         The Guarantor shall be subrogated to all (if any) rights of the Holders
against  the  Issuer  in  respect  of any  amounts  paid to the  Holders  by the
Guarantor  under  this  Guarantee  Agreement  and shall  have the right to waive
payment by the Issuer  pursuant  to Section  5.1;  provided,  however,  that the
                                                   --------   -------
Guarantor  shall not (except to the extent  required by mandatory  provisions of
law) be entitled to enforce or exercise  any rights  which it may acquire by way
of subrogation or any indemnity,  reimbursement or other agreement, in all cases
as a result of payment under this  Guarantee  Agreement,  if, at the time of any
such payment, any amounts are due and unpaid under this Guarantee Agreement.  If
any  amount  shall  be paid  to the  Guarantor  in  violation  of the  preceding
sentence,  the Guarantor agrees to hold such amount in trust for the Holders and
to pay over such amount to the Holders.

SECTION 5.7       Independent Obligations.
                  -----------------------

         The  Guarantor   acknowledges   that  its  obligations   hereunder  are
independent  of the  obligations  of the Issuer  with  respect to the  Preferred
Securities  and that the  Guarantor  shall be liable as principal  and as debtor
hereunder to make  Guarantee  Payments  pursuant to the terms of this  Guarantee
Agreement notwithstanding the occurrence of any event referred to in subsections
(a) through (g), inclusive, of Section 5.3 hereof.

                                    ARTICLE 6
                           COVENANTS AND SUBORDINATION

SECTION 6.1       Subordination.
                  -------------

         This Guarantee Agreement will constitute an unsecured obligation of the
Guarantor and will rank subordinate and junior in right of payment to all Senior
Debt of the Guarantor.

SECTION 6.2       Pari Passu Guarantees.
                  ---------------------

         This  Guarantee  Agreement  shall  rank  pari  passu  with any  similar
Guarantee  Agreements  issued  by the  Guarantor  on behalf  of the  holders  of
Preferred Securities

                                     - 14 -


issued by  Hartford  Capital I,  Hartford  Capital II,  Hartford  Capital IV and
Hartford Capital V.

                                    ARTICLE 7
                                   TERMINATION

SECTION 7.1       Termination.
                  -----------

         This Guarantee Agreement shall terminate and be of no further force and
effect  upon  (i)  full  payment  of  the  Redemption  Price  of  all  Preferred
Securities,  (ii) the  distribution of Debentures to the Holders in exchange for
all of the Preferred  Securities or (iii) full payment of the amounts payable in
accordance   with  the  Trust   Agreement   upon   liquidation  of  the  Issuer.
Notwithstanding  the  foregoing,  this  Guarantee  Agreement will continue to be
effective or will be  reinstated,  as the case may be, if at any time any Holder
must restore  payment of any sums paid with respect to Preferred  Securities  or
this Guarantee Agreement.

                                    ARTICLE 8
                                  MISCELLANEOUS

SECTION 8.1       Successors and Assigns.
                  ----------------------

         All  guarantees and  agreements  contained in this Guarantee  Agreement
shall bind the successors,  assigns, receivers,  trustees and representatives of
the  Guarantor  and shall inure to the  benefit of the Holders of the  Preferred
Securities then outstanding.  Except in connection with a consolidation,  merger
or sale  involving  the Guarantor  that is permitted  under Article Eight of the
Indenture  and pursuant to which the  assignee  agrees in writing to perform the
Guarantor's   obligations   hereunder,   the  Guarantor  shall  not  assign  its
obligations hereunder.

SECTION 8.2       Amendments.
                  ----------

         Except with respect to any changes  which do not  adversely  affect the
rights of the Holders in any  material  respect (in which case no consent of the
Holders will be required), this Guarantee Agreement may only be amended with the
prior  approval  of the  Holders  of not less  than a  Majority  in  liquidation
preference  of all the  outstanding  Preferred  Securities.  The  provisions  of
Article VI of the Trust Agreement concerning meetings of the Holders shall apply
to the giving of such approval.

                                     - 15 -


SECTION 8.3       Notices.
                  -------

         Any notice,  request or other communication required or permitted to be
given  hereunder  shall be in  writing,  duly  signed by the party  giving  such
notice, and delivered, telecopied or mailed by first class mail as follows:

                  (a) if given to the Guarantor,  to the address set forth below
         or such  other  address  as the  Guarantor  may give  notice  of to the
         Holders:

                           The Hartford Financial Services Group, Inc.
                           Hartford Plaza
                           Hartford, Connecticut  06115
                           Facsimile No.: (860) 547-5966
                           Attention: Treasurer

                  (b) if given to the Issuer, in care of the Guarantee  Trustee,
         at the Issuer's (and the Guarantee  Trustee's)  address set forth below
         or such other address as the Guarantee  Trustee on behalf of the Issuer
         may give notice to the Holders:

                           Hartford Capital III
                           c/o The Hartford Financial Services Group, Inc.
                           Hartford Plaza
                           Hartford, Connecticut  06115
                           Facsimile No:  (860) 547-5966
                           Attention:  Treasurer

                           with a copy to:

                           Wilmington Trust Company
                           1100 N. Market Street
                           Wilmington, Delaware
                           Facsimile No.:  (302) 651-8882
                           Attention:  Corporate Trust Department

                  (c) if given to any  Holder,  at the  address set forth on the
         books and records of the Issuer.

         All notices  hereunder shall be deemed to have been given when received
in person,  telecopied  with receipt  confirmed,  or mailed by first class mail,
postage  prepaid,  except that if a notice or other document is refused delivery
or cannot be  delivered  because  of a changed  address  of which no notice  was
given,  such notice or other  document shall be deemed to have been delivered on
the date of such refusal or inability to deliver.

                                     - 16 -


SECTION 8.4       Benefit.
                  -------

         This  Guarantee  Agreement is solely for the benefit of the Holders and
is not separately transferable from the Preferred Securities.

SECTION 8.5       Interpretation.
                  --------------

         In this Guarantee Agreement, unless the context otherwise requires:

                  (a) capitalized terms used in this Guarantee Agreement but not
         defined in the preamble hereto have the respective meanings assigned to
         them in Section 1.1;

                  (b) a term defined  anywhere in this  Guarantee  Agreement has
         the same meaning throughout;

                  (c) all  references  to "the  Guarantee  Agreement"  or  "this
         Guarantee  Agreement"  are to this  Guarantee  Agreement  as  modified,
         supplemented or amended from time to time;

                  (d) all references in this Guarantee Agreement to Articles and
         Sections  are to  Articles  and  Sections of this  Guarantee  Agreement
         unless otherwise specified;

                  (e) a term  defined  in the Trust  Indenture  Act has the same
         meaning when used in this Guarantee  Agreement unless otherwise defined
         in this Guarantee Agreement or unless the context otherwise requires;

                  (f) a reference to the  singular  includes the plural and vice
         versa; and

                  (g) the  masculine,  feminine  or neuter  genders  used herein
         shall include the masculine, feminine and neuter genders.

SECTION 8.6       GOVERNING LAW.
                  -------------

         THIS  GUARANTEE  AGREEMENT  SHALL  BE  GOVERNED  BY AND  CONSTRUED  AND
INTERPRETED IN ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD
TO THE CONFLICT OF LAW PRINCIPLES THEREOF.

         This instrument may be executed in any number of counterparts,  each of
which so executed shall be deemed to be an original,  but all such  counterparts
shall together constitute but one and the same instrument.

                                     - 17 -




         THIS GUARANTEE AGREEMENT is executed as of the day and year first above
written.

                                           THE HARTFORD FINANCIAL
                                              SERVICES GROUP, INC.


                                           By: /s/ J. RICHARD GARRETT
                                               ----------------------------
                                                 Name: J. Richard Garrett
                                                 Title: Senior Vice President
                                                 and Treasurer


                                           WILMINGTON TRUST COMPANY, as
                                                Guarantee Trustee


                                            By: /s/ MARY C. ST. AMAND
                                                ---------------------------
                                                 Name: Mary C. St. Amand
                                                 Title: Assistant Vice President





                             CROSS-REFERENCE TABLE*



Section of                                                      Section of
Trust Indenture Act                                             Guarantee
of 1939, as amended                                             Agreement
- -------------------                                             ---------
310(a).....................................................     4.1(a)
310(b).....................................................     4.1(c), 208
310(c).....................................................     Inapplicable
311(a).....................................................     2.2(b)
311(b).....................................................     2.2(b)
311(c).....................................................     Inapplicable
312(a).....................................................     2.2(a)
312(b).....................................................     2.2(b)
313........................................................     2.3
314(a).....................................................     2.4
314(b).....................................................     Inapplicable
314(c).....................................................     2.5
314(d).....................................................     Inapplicable
314(e).....................................................     1.1, 2.5, 3.2
314(f).....................................................     2.1, 3.2
315(a).....................................................     3.1(d)
315(b).....................................................     2.7
315(c).....................................................     3.1
315(d).....................................................     3.1(d)
316(a).....................................................     1.1, 2.6, 5.4
316(b).....................................................     5.3
316(c).....................................................     8.2
317(a).....................................................     Inapplicable
317(b).....................................................     Inapplicable
318(a).....................................................     2.1(b)
318(b).....................................................     2.1
318(c).....................................................     2.1(a)
- --------
*        This  Cross-Reference  Table does not constitute  part of the Guarantee
         Agreement and shall not affect the  interpretation  of any of its terms
         or provisions.

                                        i