Exhibit 5.01

                  [THE HARTFORD FINANCIAL SERVICES GROUP, INC.
                              LETTERHEAD AND LOGO]

May 21, 2002

The Hartford Financial Services Group, Inc.
Hartford Plaza
Hartford, CT 06115

Ladies and Gentlemen:

In connection with the filing with the Securities and Exchange Commission under
the Securities Act of 1933, as amended (the "Act"), of a Registration Statement
on Form S-3 (the "Registration Statement"), relating to the public offering by
The Hartford Financial Services Group, Inc., a Delaware Corporation (the
"Company"), of up to $2,585,566,579 in the aggregate of (i) senior debt
securities of the Company (the "Senior Debt Securities") to be issued pursuant
to an Indenture (the "Senior Indenture"), dated as of October 20, 1995, between
the Company and The Chase Manhattan Bank, as trustee (the "Senior Trustee"),
(ii) subordinated debt securities of the Company (the "Subordinated Debt
Securities" and together with the Senior Debt Securities, the "Debt Securities")
to be issued pursuant to a Subordinated Indenture (the "Subordinated Indenture")
to be entered into between the Company and a trustee to be named in the
prospectus supplement pertaining to the offering of Subordinated Debt Securities
(the "Subordinated Trustee"), (iii) junior subordinated deferrable interest
debentures of the Company (the "Junior Subordinated Debt Securities"), to be
issued pursuant to a Junior Subordinated Indenture, dated as of October 30,
1996, between the Company and Wilmington Trust Company, as trustee (the
"Debenture Trustee"), (iv) shares of preferred stock of the Company, par value
$.01 per Share (the "Preferred Stock"), (v) shares of Class A Common Stock of
the Company, par value $.01 per share (the "Common Stock"), (vi) depositary
shares representing fractional interests in the Preferred Stock (the "Depositary
Shares"), (vii) warrants representing rights to purchase Debt Securities,
Preferred Stock or Common Stock (the "Warrants"), (viii) stock purchase
contracts representing rights to purchase Preferred Stock or Common Stock (the
"Stock Purchase Contracts"), (ix) stock purchase units, representing ownership
of Stock Purchase Contracts and Debt Securities, Preferred Securities (as
defined below) or debt obligations of third parties, including U.S. Treasury
Securities (the "Stock Purchase Units"), and (x) preferred securities (the
"Preferred Securities") of Hartford Capital IV, Hartford Capital V and Hartford
Capital VI, each a trust formed under the laws of the State of Delaware (each, a
"Trust" and collectively, the "Trusts"), guaranteed to the extent the Trust has
funds as set forth in the Registration Statement by the Company (as such may be
issued from time to time, the "Guarantee"), as well as up to an additional
$517,113,315 aggregate amount of such securities that may be registered in
accordance with Rule 462(b) under the Act, I have examined such corporate
records, certificates and other documents and such questions of law as I have
considered necessary for the purposes of this opinion.

Upon the basis of such examination, I advise you that, in my opinion:

1.       The Company has been duly incorporated and is an existing corporation
         in good standing under the laws of the State of Delaware.

2.       The execution and delivery of the Senior Indenture and the Senior Debt
         Securities have been duly authorized by the Company. The Senior
         Indenture has been duly executed and delivered by the Company and,
         assuming the Senior Indenture has been duly executed and delivered by
         the Senior Trustee, when the Senior Debt Securities have been duly
         executed, authenticated, issued, delivered and paid for as contemplated
         by the Registration Statement and any prospectus supplement relating
         thereto and in accordance with the Senior Indenture, assuming the terms
         of such Senior Debt Securities have been duly established so as not to
         violate any applicable law or result in a default under or breach of
         any agreement or instrument binding upon the Company and so as to
         comply with any requirement or restriction imposed by any court or
         governmental body having jurisdiction over the Company, the Senior Debt
         Securities will be validly issued and will constitute valid and binding
         obligations of the Company enforceable against the Company in
         accordance with their terms, except as may be limited by applicable
         bankruptcy, insolvency, reorganization, moratorium or similar laws of
         general applicability relating to or affecting the rights of creditors
         and to general equity principles (whether considered in a proceeding at
         law or in equity).

3.       The execution and delivery of the Subordinated Indenture and the
         Subordinated Debt Securities have been duly authorized by the Company.
         When the Subordinated Indenture has been duly executed and delivered by
         the Company and the Subordinated Trustee and when the Subordinated Debt
         Securities have been duly executed, authenticated, issued, delivered
         and paid for as contemplated by the Registration Statement and any
         prospectus supplement relating thereto and in accordance with the
         Subordinated Indenture, assuming the terms of such Subordinated Debt
         Securities have been duly established so as not to violate any
         applicable law or result in a default under or breach of any agreement
         or instrument binding upon the Company and so as to comply with any
         requirement or restriction imposed by any court or governmental body
         having jurisdiction over the Company, the Subordinated Debt Securities
         will be validly issued and will constitute valid and binding
         obligations of the Company enforceable against the Company in
         accordance with their terms, except as may be limited by applicable
         bankruptcy, insolvency, reorganization, moratorium or similar laws of
         general applicability relating to or affecting the rights of creditors
         and to general equity principles (whether considered in a proceeding at
         law or in equity).

4.       The execution and delivery of the Junior Subordinated Indenture and the
         Junior Subordinated Debt Securities have been duly authorized by the
         Company. The Junior Indenture has been duly executed and delivered by
         the Company and, assuming the Junior Indenture has been duly executed
         and delivered by the Debenture Trustee, when the Junior Subordinated
         Debt Securities have been duly executed, authenticated, issued,
         delivered and paid for as contemplated by the

         Registration Statement and any prospectus supplement relating thereto
         and in accordance with the Junior Subordinated Indenture, assuming the
         terms of such Junior Subordinated Debt Securities have been duly
         established so as not to violate any applicable law or result in a
         default under or breach of any agreement or instrument binding upon the
         Company and so as to comply with any requirement or restriction imposed
         by any court or governmental body having jurisdiction over the Company,
         the Junior Subordinated Debt Securities will be validly issued and will
         constitute valid and binding obligations of the Company enforceable
         against the Company in accordance with their terms, except as may be
         limited by applicable bankruptcy, insolvency, reorganization,
         moratorium or similar laws of general applicability relating to or
         affecting the rights of creditors and to general equity principles
         (whether considered in a proceeding at law or in equity).

5.       When (i) the terms of the Preferred Stock and of its issuance and sale
         have been duly established in conformity with the Company's Amended and
         Restated Certificate of Incorporation, as amended, and approved by all
         necessary corporate action of the Board of Directors of the Company
         (the "Board of Directors") or a duly authorized committee thereof, so
         as not to violate any applicable law or result in a default under or
         breach of any agreement or instrument binding upon the Company and so
         as to comply with any requirement or restriction imposed by any court
         or governmental body having jurisdiction over the Company, (ii) a
         Certificate of Designation fixing and determining the terms of the
         Preferred Stock has been filed with the Secretary of State of the State
         of Delaware and (iii) the Preferred Stock has been duly issued and sold
         as contemplated by the Registration Statement and any prospectus
         supplement relating thereto, against payment of the consideration fixed
         therefore by the Board of Directors or a duly authorized committee
         thereof, the Preferred Stock will be duly authorized, validly issued,
         fully paid and nonassessable.

6.       When (i) the terms of the issuance and sale of the Common Stock have
         been duly approved by all necessary action of the Board of Directors or
         a duly authorized committee thereof so as not to violate any applicable
         law or result in a default under or a breach of any agreement or
         instrument binding upon the Company and so as to comply with any
         requirement or restriction imposed by any court or governmental body
         having jurisdiction over the Company and (ii) certificates for the
         shares of Common Stock have been duly executed, authenticated, issued
         and delivered as contemplated by the Registration Statement and any
         prospectus supplement relating thereto, against payment of the
         consideration fixed therefor by the Board of Directors or a duly
         authorized committee thereof, the Common Stock will be duly authorized,
         validly issued, fully paid and nonassessable.

7.       When (i) the issuance and terms of the Warrants, the terms of the
         offering thereof and related matters have been duly approved by all
         necessary corporate action of the Board of Directors or a duly
         authorized committee thereof so as not to violate any applicable law or
         result in a default under or a breach of any agreement or instrument
         binding upon the Company and so as to comply with any requirement

         or restriction imposed by any court or governmental body having
         jurisdiction over the Company, (ii) the warrant agreement or agreements
         relating to the Warrants have been duly authorized and validly executed
         and delivered by the Company and the warrant agent appointed by the
         Company and (iii) the Warrants or certificates representing the
         Warrants have been duly executed, authenticated, issued and delivered
         as contemplated by the Registration Statement and any prospectus
         supplement relating thereto, against payment of the consideration fixed
         therefor by the Board of Directors or a duly authorized committee
         thereof, the Warrants will be duly authorized and validly issued.

8.       When (i) the terms of the Stock Purchase Contracts, the terms of the
         offering thereof and related matters have been duly approved by all
         necessary corporate action of the Board of Directors or a duly
         authorized committee thereof so as not to violate any applicable law or
         result in a default under or a breach of any agreement or instrument
         binding upon the Company and so as to comply with any requirement or
         restriction imposed by any court or governmental body having
         jurisdiction over the Company and (ii) the Stock Purchase Contracts
         have been validly executed and delivered by the Company as contemplated
         by the Registration Statement and any prospectus supplement relating
         thereto, against payment of the consideration fixed therefor by the
         Board of Directors or a duly authorized committee thereof, the Stock
         Purchase Contracts will constitute valid and legally binding
         obligations of the Company enforceable against the Company in
         accordance with their terms, except as may be limited by applicable
         bankruptcy, insolvency, reorganization, moratorium or similar laws of
         general applicability relating to or affecting the rights of creditors
         and to general equity principles (whether considered in a proceeding at
         law or in equity).

9.       When (i) the creation of and the issuance and terms of the Stock
         Purchase Units, the terms of the offering thereof and related matters
         have been duly approved by all necessary corporate action of the Board
         of Directors or a duly authorized committee thereof so as not to
         violate any applicable law or result in a default under or a breach of
         any agreement or instrument binding upon the Company and so as to
         comply with any requirement or restriction imposed by any court or
         governmental body having jurisdiction over the Company, (ii) the
         deposit agreement relating to the Stock Purchase Units has been duly
         authorized and validly executed and delivered by the Company and the
         depositary appointed by the Company and (iii) the Stock Purchase Units
         or certificates representing the Stock Purchase Units have been duly
         executed, authenticated, issued and delivered as contemplated by the
         Registration Statement and any prospectus supplement relating thereto,
         against payment of the consideration fixed therefor by the Board of
         Directors or a duly authorized committee thereof, the Stock Purchase
         Units will be duly authorized and validly issued.

10.      When (i) the Guarantee has been duly authorized by the Board of
         Directors or a duly authorized committee thereof and (ii) the Guarantee
         has been validly executed and delivered by the Company, the Guarantee
         will constitute a valid and legally binding obligation of the Company
         enforceable against the Company in

         accordance with its terms, except as may be limited by applicable
         bankruptcy, insolvency, reorganization, moratorium or similar laws of
         general applicability relating to or affecting the rights of creditors
         and to general equity principles (whether considered in a proceeding at
         law or in equity).

         The opinions set forth in paragraphs 1 though 10 are subject to the
following additional qualifications:

         (a) I express no opinion as to (1) any waiver of inconvenient forum set
         forth in any agreement or (2) any provision relating to judgments in
         currencies other than United States dollars. I express no opinion
         concerning whether a United States Federal court would accept
         jurisdiction in any dispute, action, suit or proceeding arising out of
         or relating to any agreement or the transactions contemplated thereby.

         (b) The opinions expressed in paragraphs 1 through 10 above are limited
         to the Federal laws of the United States, the laws of the State of
         Connecticut and the Act, as currently in effect. In particular (and
         without limiting the generality of the foregoing) I express no opinion
         (1) as to the laws of any country (other than the Federal laws of the
         United States of America) or as to the effect of such laws (whether
         limiting, prohibitive or otherwise) on any of the rights or obligations
         of any party to or beneficiary of any agreements or (2) concerning the
         effect (if any) of any law of any jurisdiction (except the State of
         Connecticut) in which any holder of any securities issued by the
         Company or the Trusts is located that limits the rate of interest that
         such holder may charge or collect. In addition (and without limiting
         the generality of the foregoing), my opinions are subject to the
         effects of, and I express no opinion with respect to the application of
         or compliance with, state securities or "blue sky" laws, statutes,
         rules or regulations.

         I hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to me under the heading "Legal
Opinions" in the Prospectus. In giving such consent, I do not thereby admit that
I am in the category of persons whose consent is required under Section 7 of the
Act.

Sincerely,

/s/ Katherine Vines Trumbull

Vice President and Corporate Secretary of
The Hartford Financial Services Group, Inc.