EXHIBIT 4.6

                          SUPPLEMENTAL INDENTURE NO. 3

                                 by and between

                          HOSPITALITY PROPERTIES TRUST

                                       and

                       STATE STREET BANK AND TRUST COMPANY

                             as of December 16, 1998




           SUPPLEMENTAL TO THE INDENTURE DATED AS OF FEBRUARY 25, 1998




                      ------------------------------------





                          HOSPITALITY PROPERTIES TRUST

                   8 1/2% Monthly Income Senior Notes due 2009






         This SUPPLEMENTAL INDENTURE NO. 3 (this "Supplemental  Indenture") made
and entered into as of December 16, 1998 between HOSPITALITY PROPERTIES TRUST, a
Maryland real estate investment trust (the "Company"), and STATE STREET BANK AND
TRUST COMPANY, a Massachusetts trust company, as Trustee (the "Trustee").

                                WITNESSETH THAT:

         WHEREAS,  the Company and the Trustee have  executed  and  delivered an
Indenture,  dated as of  February  25, 1998 (the  "Indenture"),  relating to the
Company's issuance, from time to time, of various series of debt securities; and

         WHEREAS,  the Company has determined to issue debt securities  known as
its 8 1/2 % Monthly Income Senior Notes due 2009; and

         WHEREAS,  the Indenture  provides that certain terms and conditions for
each series of debt securities issued by the Company thereunder may be set forth
in an indenture supplemental to the Indenture;

         NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH:

                                    ARTICLE 1

                                  DEFINED TERMS

         Section 1.1 The following  definitions  supplement,  and, to the extent
inconsistent with, replace the definitions in Section 101 of the Indenture:

         "Acquired  Debt"  means Debt of a Person (i)  existing at the time such
Person becomes a Subsidiary or (ii) assumed in connection  with the  acquisition
of assets from such Person, in each case, other than Debt incurred in connection
with,  or in  contemplation  of,  such  Person  becoming  a  Subsidiary  or such
acquisition.  Acquired  Debt shall be deemed to be  incurred  on the date of the
related  acquisition  of assets from any Person or the date the acquired  Person
becomes a Subsidiary.

         "Annual Debt Service" as of any date means the maximum  amount which is
expensed  in any  12-month  period for  interest  on Debt of the Company and its
Subsidiaries.

         "Business  Day" means any day, other than a Saturday or Sunday or a day
on which  banking  institutions  in The City of New York or in the city in which
the Corporate Trust Office of the Trustee is located, are required or authorized
to close.

         "Capital  Stock" means,  with respect to any Person,  any capital stock
(including preferred stock), shares, interests, participation or other ownership
interests  (however  designated)  of such Person and any rights (other than debt
securities  convertible  into or exchangeable  for capital  stock),  warrants or
options to purchase any thereof.

         "Consolidated  Income  Available for Debt Service" for any period means
Earnings from Operations of the Company and its Subsidiaries  plus amounts which
have been deducted,  and minus amounts which have been added,  for the following
(without duplication): (i) interest on Debt of the Company and its Subsidiaries,
(ii) cash  reserves  made by lessees as  required  by the  Company's  leases for
periodic  replacement and refurbishment of the Company's assets, (iii) provision
for taxes of the Company and its Subsidiaries based on income, (iv) amortization
of debt discount and deferred  financing  costs,  (v)  provisions  for gains and
losses on properties and property depreciation and amortization, (vi) the effect
of any  noncash  charge  resulting  from a change in  accounting  principles  in
determining  Earnings from Operations for such period and (vii)  amortization of
deferred charges.

         "Debt" of the Company or any Subsidiary means, without duplication, any
indebtedness  of the Company or any Subsidiary,  whether or not  contingent,  in
respect of (i)  borrowed  money or  evidenced  by bonds,  notes,  debentures  or
similar  instruments,  (ii)  indebtedness  for  borrowed  money  secured  by any
Encumbrance existing on property owned by the Company or any Subsidiary,  to the
extent of the lesser of (x) the amount of indebtedness so secured and (y) the



fair  market  value of the  property  subject  to such  Encumbrance,  (iii)  the
reimbursement  obligations,  contingent  or otherwise,  in  connection  with any
letters of credit  actually  issued  (other  than  letters  of credit  issued to
provide credit  enhancement or support with respect to other indebtedness of the
Company or any  Subsidiary  otherwise  reflected as Debt  hereunder)  or amounts
representing  the  balance  deferred  and  unpaid of the  purchase  price of any
property  or  services,  except any such  balance  that  constitutes  an accrued
expense or trade payable,  or all  conditional  sale  obligations or obligations
under  any  title  retention  agreement,   (iv)  the  principal  amount  of  all
obligations  of the  Company  or any  Subsidiary  with  respect  to  redemption,
repayment or other  repurchase of any  Disqualified  Stock,  or (v) any lease of
property by the Company or any  Subsidiary  as lessee  which is reflected on the
Company's  consolidated  balance sheet as a capitalized lease in accordance with
GAAP,  to the  extent,  in the case of items of  indebtedness  under (i) through
(iii) above,  that any such items (other than letters of credit) would appear as
a liability on the Company's consolidated balance sheet in accordance with GAAP,
and also includes,  to the extent not otherwise included,  any obligation by the
Company or any Subsidiary to be liable for, or to pay, as obligor,  guarantor or
otherwise  (other than for  purposes of  collection  in the  ordinary  course of
business), Debt of another Person (other than the Company or any Subsidiary) (it
being  understood that Debt shall be deemed to be incurred by the Company or any
Subsidiary  whenever  the  Company  or such  Subsidiary  shall  create,  assume,
guarantee or otherwise become liable in respect thereof).

         "Disqualified  Stock"  means,  with respect to any Person,  any Capital
Stock of such Person which by the terms of such  Capital  Stock (or by the terms
of any security into which it is convertible or for which it is  exchangeable or
exercisable),  upon the  happening of any event or  otherwise  (i) matures or is
mandatorily  redeemable,  pursuant to a sinking  fund  obligation  or  otherwise
(other than  Capital  Stock which is  redeemable  solely in exchange  for common
stock or shares),  (ii) is convertible  into or  exchangeable or exercisable for
Debt or  Disqualified  Stock, or (iii) is redeemable at the option of the holder
thereof,  in whole or in part (other  than  Capital  Stock  which is  redeemable
solely in exchange for common stock or shares),  in each case on or prior to the
stated maturity of the Notes.

         "Earnings from Operations" for any period means net earnings  excluding
gains  and  losses on sales of  investments,  extraordinary  items and  property
valuation  losses,  as reflected in the financial  statements of the Company and
its  Subsidiaries  for  such  period,  determined  on a  consolidated  basis  in
accordance with GAAP.

         "Encumbrance"  means any  mortgage,  lien,  charge,  pledge or security
interest of any kind.

         "Notes"  means the  Company's 8 1/2%  Monthly  Income  Senior Notes due
2009, issued under this Supplemental Indenture and the Indenture,  as amended or
supplemented from time to time.

         "Secured Debt" means Debt secured by any mortgage, lien, charge, pledge
or security interest of any kind.

         "Subsidiary"  means any corporation or other entity of which a majority
of (i) the voting power of the voting equity  securities or (ii) the outstanding
equity interests of which are owned,  directly or indirectly,  by the Company or
one or  more  other  Subsidiaries  of the  Company.  For  the  purposes  of this
definition,  "voting equity  securities"  means equity  securities having voting
power for the election of directors,  whether at all times or only so long as no
senior class of security has such voting power by reason of any contingency.

         "Total  Assets" as of any date  means the sum of (i) the  Undepreciated
Real Estate Assets and (ii) all other assets of the Company and its Subsidiaries
determined  in  accordance  with GAAP (but  excluding  accounts  receivable  and
intangibles).

         "Total  Unencumbered  Assets" means the sum of (i) those  Undepreciated
Real Estate Assets not subject to an Encumbrance for borrowed money and (ii) all
other assets of the Company and its  Subsidiaries  not subject to an Encumbrance
for borrowed money  determined in accordance  with GAAP (but excluding  accounts
receivable and intangibles).

         "Undepreciated  Real  Estate  Assets"  as of any  date  means  the cost
(original cost plus capital  improvements)  of real estate assets of the Company
and  its  Subsidiaries  on  such  date,  before  depreciation  and  amortization
determined on a consolidated basis in accordance with GAAP.

         "Unsecured  Debt"  means  Debt  which  is  not  secured  by  any of the
properties of the Company or any Subsidiary.

                                       -2-


                                    ARTICLE 2

                               TERMS OF THE NOTES

         Section 2.1 Pursuant to Section 301 of the  Indenture,  the Notes shall
have the following terms and conditions:

         (a) Title;  Aggregate  Principal Amount; Form of Notes. The Notes shall
be Registered Securities under the Indenture and shall be known as the Company's
"8 1/2% Monthly  Income  Senior Notes due 2009." The Notes will be limited to an
aggregate principal amount of $172,500,000,  subject to the right of the Company
to reopen such series for issuances of additional  securities of such series and
except as provided in this  Section  and in Section  306 of the  Indenture.  The
Notes  (together  with the Trustee's  certificate  of  authentication)  shall be
substantially in the form of Exhibit A hereto,  which is hereby  incorporated in
and made a part of this Supplemental Indenture.

         The Notes will be issued in the form of one or more  registered  global
securities  without coupons  ("Global Notes") that will be deposited with, or on
behalf of, The Depository Trust Company  ("DTC"),  and registered in the name of
DTC's nominee,  Cede & Co. Except under the  circumstance  described  below, the
Notes will not be issuable in definitive form.  Unless and until it is exchanged
in whole or in part for the individual notes represented  thereby, a Global Note
may not be  transferred  except  as a whole by DTC to a  nominee  of DTC or by a
nominee of DTC to DTC or another  nominee of DTC or by DTC or any nominee of DTC
to a successor depositary or any nominee of such successor.

         So long as DTC or its nominee is the registered owner of a Global Note,
DTC or such nominee,  as the case may be, will be  considered  the sole owner or
holder of the Notes  represented by such Global Note for all purposes under this
Supplemental Indenture. Except as described below, owners of beneficial interest
in Notes  evidenced  by a Global  Note will not be  entitled  to have any of the
individual Notes represented by such Global Note registered in their names, will
not  receive or be entitled  to receive  physical  delivery of any such Notes in
definitive  form and will not be considered the owners or holders  thereof under
the Indenture or this Supplemental Indenture.

         If DTC is at any time  unwilling,  unable or  ineligible to continue as
depositary and a successor  depositary is not appointed by the Company within 90
days, the Company will issue individual Notes in exchange for the Global Note or
Global Notes  representing such Notes. In addition,  the Company may at any time
and in its sole  discretion,  subject  to certain  limitations  set forth in the
Indenture,  determine not to have any of such Notes  represented  by one or more
Global Notes and, in such event, will issue individual Notes in exchange for the
Global Note or Global Notes  representing the Notes.  Individual Notes so issued
will be issued in denominations of $1,000 and integral multiples thereof.

         (b) Interest and Interest  Rate. The Notes will bear interest at a rate
of 8 1/2% per annum,  from  December  16, 1998 (or, in the case of Notes  issued
upon the  reopening  of this series of Notes,  from the date  designated  by the
Company in connection  with such  reopening) or from the  immediately  preceding
Interest  Payment  Date to which  interest has been paid or duly  provided  for,
payable  monthly in arrears on the 15th of each  month,  commencing  January 15,
1999 (each of which  shall be an  "Interest  Payment  Date"),  to the Persons in
whose names the Notes are  registered  in the Security  Register at the close of
business on the 1st of each month  (whether or not a Business  Day), as the case
may be, next  preceding  such  Interest  Payment Date (each,  a "Regular  Record
Date").

         (c) Principal Repayment;  Currency. The stated maturity of the Notes is
January 15, 2009,  provided,  however,  the Notes may be earlier redeemed at the
option of the Company as provided in paragraph (d) below.  The principal of each
Note  payable  on its  maturity  date  shall be paid  against  presentation  and
surrender  thereof  at  the  Corporate  Trust  Office  of the  Trustee,  located
initially at Two International Place, Boston,  Massachusetts 02110, in such coin
or currency  of the United  States of America as at the time of payment is legal
tender for the  payment of public or private  debts.  The  Company  will not pay
Additional Amounts (as defined in the Indenture) on the Notes.

         (d)  Redemption at the Option of the Company;  Acceleration.  The Notes
may not be redeemed  prior to December  15,  2002.  From and after  December 15,
2002,  the Notes will be subject to  redemption at any time at the option of the
Company,  in  whole or in part,  upon  not less  than 30 nor more  than 60 days'
notice to each Holder of Notes to be redeemed  at its address  appearing  in the
Security  Register,  at a price equal to the principal amount of the Notes being
redeemed,  plus  accrued and unpaid  interest to but  excluding  the  applicable
Redemption Date. Upon the

                                       -3-


acceleration of the Notes in accordance  with Section 502 of the Indenture,  the
principal  amount of the Notes,  plus accrued and unpaid interest  thereon shall
become due and payable immediately.

         (e) Notices. All notices and other communications hereunder shall be in
writing and shall be deemed to have been duly given if mailed or  transmitted by
any standard form of telecommunication. Notices to the Company shall be directed
to it at 400 Centre Street, Newton,  Massachusetts 02458, Attention:  President;
notices to the  Trustee  shall be  directed  to it at Two  International  Place,
Boston,   Massachusetts  02110,  Attention:   Corporate  Trust  Department,  Re:
Hospitality  Properties Trust 8 1/2% Monthly Income Senior Notes due 2009; or as
to either party, at such other address as shall be designated by such party in a
written notice to the other party.

         (f) Global  Note  Legend.  Each  Global  Note shall bear the  following
legend on the face thereof:

         UNLESS THIS NOTE IS PRESENTED BY AN  AUTHORIZED  REPRESENTATIVE  OF THE
         DEPOSITORY  TRUST  COMPANY,  A NEW  YORK  CORPORATION  ("DTC"),  TO THE
         COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
         AND ANY NOTE ISSUED IS  REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
         OTHER NAME AS IS REQUESTED BY AN AUTHORIZED  REPRESENTATIVE OF DTC (AND
         ANY  PAYMENT  IS MADE  TO CEDE & CO.  OR TO  SUCH  OTHER  ENTITY  AS IS
         REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE
         OR OTHER USE  HEREOF  FOR  VALUE OR  OTHERWISE  BY OR TO ANY  PERSON IS
         WRONGFUL  INASMUCH AS THE REGISTERED  OWNER HEREOF,  CEDE & CO., HAS AN
         INTEREST HEREIN.

         (g)  Applicability  of Discharge,  Defeasance  and Covenant  Defeasance
Provisions.  The  Discharge,  Defeasance and Covenant  Defeasance  provisions in
Article Fourteen of the Indenture will apply to the Notes.

                                    ARTICLE 3

                              ADDITIONAL COVENANTS

         Section 3.1 In addition  to the  covenants  of the Company set forth in
Article Ten of the Indenture, for the benefit of the holders of the Notes:

         (a) Limitations on Incurrence of Debt.

                  (i) The Company will not,  and will not permit any  Subsidiary
         to,  incur  any  Debt  if,  immediately  after  giving  effect  to  the
         incurrence of such  additional Debt and the application of the proceeds
         thereof,  the aggregate principal amount of all outstanding Debt of the
         Company and its  Subsidiaries  on a  consolidated  basis  determined in
         accordance  with GAAP is greater than 60% of the sum  ("Adjusted  Total
         Assets") of (without  duplication)  (i) the Total Assets of the Company
         and its  Subsidiaries as of the end of the calendar  quarter covered in
         the Company's  Annual  Report on Form 10-K, or the Quarterly  Report on
         Form 10-Q, as the case may be, most recently  filed with the Securities
         and Exchange  Commission (or, if such filing is not permitted under the
         Securities Exchange Act of 1934, as amended, with the Trustee) prior to
         the incurrence of such  additional  Debt and (ii) the purchase price of
         any real estate assets or mortgages receivable acquired, and the amount
         of any securities  offering  proceeds received (to the extent that such
         proceeds  were not used to  acquire  real  estate  assets or  mortgages
         receivable  or used to reduce Debt),  by the Company or any  Subsidiary
         since  the end of  such  calendar  quarter,  including  those  proceeds
         obtained in connection with the incurrence of such additional Debt.

                  (ii)  In  addition  to  the  foregoing   limitations   on  the
         incurrence  of Debt,  the  Company  will not,  and will not  permit any
         Subsidiary  to,  incur any Secured  Debt if,  immediately  after giving
         effect  to the  incurrence  of such  additional  Secured  Debt  and the
         application of the proceeds thereof,  the aggregate principal amount of
         all outstanding  Secured Debt of the Company and its  Subsidiaries on a
         consolidated basis is greater than 40% of Adjusted Total Assets.

                  (iii)  In  addition  to  the  foregoing   limitations  on  the
         incurrence  of Debt,  the  Company  will not,  and will not  permit any
         Subsidiary  to,  incur  any Debt if the  ratio of  Consolidated  Income
         Available for Debt

                                       -4-


         Service to the Annual  Debt  Service  for the four  consecutive  fiscal
         quarters most recently ended prior to the date on which such additional
         Debt is to be  incurred  shall have been less than 1.5 to 1.0, on a pro
         forma basis after giving effect  thereto and to the  application of the
         proceeds therefrom, and calculated on the assumption that (i) such Debt
         and any other Debt incurred by the Company and its  Subsidiaries  since
         the first day of such  four-quarter  period and the  application of the
         proceeds therefrom,  including to refinance other Debt, had occurred at
         the  beginning of such period;  (ii) the repayment or retirement of any
         other Debt by the Company and its Subsidiaries  since the first date of
         such four-quarter period had been repaid or retired at the beginning of
         such period  (except  that, in making such  computation,  the amount of
         Debt under any revolving  credit  facility shall be computed based upon
         the average daily  balance of such Debt during such  period);  (iii) in
         the case of  Acquired  Debt or Debt  incurred  in  connection  with any
         acquisition  since  the  first  day of such  four-quarter  period,  the
         related  acquisition  had  occurred  as of the first day of such period
         with appropriate  adjustments  with respect to such  acquisition  being
         included  in such pro  forma  calculation;  and (iv) in the case of any
         acquisition or disposition  by the Company or its  Subsidiaries  of any
         asset or group of  assets  since  the  first  day of such  four-quarter
         period, whether by merger, stock purchase or sale, or asset purchase or
         sale, such acquisition or disposition or any related  repayment of Debt
         had  occurred as of the first day of such  period with the  appropriate
         adjustments  with  respect to such  acquisition  or  disposition  being
         included in such pro forma calculation.  If the Debt giving rise to the
         need to make the foregoing calculation or any other Debt incurred after
         the first day of the relevant  four-quarter  period bears interest at a
         floating  rate then,  for  purposes  of  calculating  the  Annual  Debt
         Service,  the  interest  rate on such Debt shall be  computed  on a pro
         forma  basis as if the average  interest  rate which would have been in
         effect  during  the  entire  such  four-quarter  period  had  been  the
         applicable rate for the entire such period.

         (b)  Maintenance  of Total  Unencumbered  Assets.  The  Company and its
Subsidiaries  will maintain at all times Total  Unencumbered  Assets of not less
than 200% of the aggregate outstanding principal amount of the Unsecured Debt of
the Company and its Subsidiaries on a consolidated basis.

                                    ARTICLE 4

                          ADDITIONAL EVENTS OF DEFAULT

         For purposes of this Supplemental  Indenture and the Notes, in addition
to the Events of Default  set forth in Section  501 of the  Indenture,  it shall
also  constitute an "Event of Default" if a default  under any bond,  debenture,
note or other evidence of indebtedness of the Company  (including a default with
respect to any other series of securities), or under any mortgage,  indenture or
other  instrument  of the  Company  under  which there may be issued or by which
there may be secured or evidenced  any  indebtedness  for money  borrowed by the
Company (or by any Subsidiary, the repayment of which the Company has guaranteed
or for which the  Company  is  directly  responsible  or  liable as  obligor  or
guarantor)  having  an  aggregate  principal  amount  outstanding  of  at  least
$20,000,000, whether such indebtedness now exists or shall hereafter be incurred
or created,  which default shall have resulted in such indebtedness  becoming or
being  declared  due and payable  prior to the date on which it would  otherwise
have become due and payable, without such indebtedness having been discharged or
such acceleration  having been rescinded or annulled within a period of ten days
after there shall have been given,  by  registered  or  certified  mail,  to the
Company by the  Trustee or to the  Company  and the Trustee by the Holders of at
least  25% in  principal  amount of the  outstanding  Notes,  a  written  notice
specifying such default and requiring the Company to cause such  indebtedness to
be discharged or cause such acceleration to be rescinded or annulled and stating
that such notice is a "Notice of Default" hereunder.

                                    ARTICLE 5

                                  EFFECTIVENESS

         This  Supplemental  Indenture shall be effective for all purposes as of
the date and time this Supplemental Indenture has been executed and delivered by
the Company and the Trustee in accordance with Article Nine of the Indenture. As
supplemented  hereby,  the Indenture is hereby  confirmed as being in full force
and effect.

                                       -5-


                                    ARTICLE 6

                                  MISCELLANEOUS

         Section 6.1 In the event any provision of this  Supplemental  Indenture
shall be held invalid or unenforceable  by any court of competent  jurisdiction,
such holding shall not invalidate or render  unenforceable  any other  provision
hereof or any provision of the Indenture.

         Section 6.2 To the extent that any terms of this Supplemental Indenture
or the Notes are inconsistent with the terms of the Indenture, the terms of this
Supplemental or the Notes shall govern and supersede such inconsistent terms.

         Section  6.3  This  Supplemental  Indenture  shall be  governed  by and
construed in accordance with the laws of The Commonwealth of Massachusetts.

         Section  6.4 This  Supplemental  Indenture  may be  executed in several
counterparts,  each  of  which  shall  be an  original  and all of  which  shall
constitute but one and the same instrument.





                  [Remainder of page intentionally left blank.]





                                       -6-



         IN WITNESS  WHEREOF,  the  Company  and the  Trustee  have  caused this
Supplemental  Indenture  to be  executed  as an  instrument  under seal in their
respective corporate names as of the date first above written.

                                            HOSPITALITY PROPERTIES TRUST



                                            By: /s/ John G. Murray          
                                                John G. Murray
                                                President and Secretary


                                            STATE STREET BANK AND TRUST
                                             COMPANY, as Trustee



                                           By: /s/ Paul G. Grenier          
                                               Name:  Paul G. Grenier
                                               Title:  Vice President




                                       -7-


                                    EXHIBIT A

                                  FORM OF NOTE

                                 (Face of Note)



                   8 1/2% Monthly Income Senior Note due 2009
No.                                                              $

                          HOSPITALITY PROPERTIES TRUST

promises to pay to_____________ or registered assigns, the principal sum of
 _______________________________ on January 15, 2009

                  Interest Payment Dates:  the 15th of each month.
                  Record Dates:  the 1st of each month.

CUSIP No.:  44106M AC 6


                                           HOSPITALITY PROPERTIES TRUST



                                           By:_______________________________



Dated:


CERTIFICATE OF AUTHENTICATION

This is one of the Notes referred to in the 
within-mentioned Indenture:

STATE STREET BANK AND TRUST COMPANY, as Trustee


By:_________________________________
     Authorized Officer


             [THE FOLLOWING CONSTITUTES THE REVERSE OF THE SECURITY]

                          HOSPITALITY PROPERTIES TRUST

                   8 1/2% Monthly Income Senior Note due 2009

         Capitalized terms used herein have the meanings assigned to them in the
Indenture (as defined below) unless otherwise indicated.

         1.  Interest.  Hospitality  Properties  Trust,  a Maryland  real estate
investment  trust (the  "Company"),  promises to pay  interest on the  principal
amount of this Note at the rate and in the manner specified below.

         The Company shall pay in cash interest on the principal  amount of this
Note at the rate per annum of 8 1/2%.  The Company will pay interest  monthly in
arrears on the 15th of each month, commencing on January 15, 1999 or if any such
day is not a Business Day (as defined in the Indenture),  on the next succeeding
Business  Day (each an  "Interest  Payment  Date"),  to Holders of record on the
immediately preceding 1st of each month (whether or not a Business Day).

         Interest will be computed on the basis of a 360-day year  consisting of
twelve 30-day  months.  Interest shall accrue from the most recent date to which
interest has been paid or, if no interest has been paid, from December 16, 1998.

         2.  Method of  Payment.  The  Company  will pay  interest  on the Notes
(except defaulted  interest) to the Persons who are registered  Holders of Notes
at the close of business on the record date next preceding the Interest  Payment
Date,  even if such Notes are  canceled  after such record date and on or before
such Interest Payment Date. The Company will pay principal and interest in money
of the United  States that at the time of payment is legal tender for payment of
public and private debts. The Company,  however, may pay principal,  premium, if
any, and interest by check payable in such money.  It may mail an interest check
to a Holder's registered address.

         3. Indenture. The Company issued the Notes under an Indenture, dated as
of February 25, 1998,  and a Supplemental  Indenture No. 3 thereto,  dated as of
December 16, 1998  (collectively,  the "Indenture")  between the Company and the
Trustee.  The terms of the Notes include those stated in the Indenture and those
made part of the  Indenture by reference to the Trust  Indenture Act of 1939 (15
U.S. Code ss.ss.  77aaa-77bbbb)  as in effect on the date of the Indenture.  The
Notes are  subject to all such terms,  and Holders of the Notes are  referred to
the  Indenture  and such Act for a  statement  of such  terms.  The terms of the
Indenture shall govern any inconsistencies  between the Indenture and the Notes.
The  Notes  are  unsecured  general   obligations  of  the  Company  limited  to
$172,500,000 in aggregate principal amount,  except as otherwise provided in the
Indenture.

         4. Optional Redemption. The Notes may not be redeemed prior to December
15,  2002.  From and after  December  15,  2002,  the Notes  will be  subject to
redemption at any time at the option of the Company,  in whole or in part,  upon
not less than 30 nor more than 60 days' notice,  at a redemption  price equal to
the  principal  amount of the Notes  being  redeemed,  plus  accrued  and unpaid
interest to but excluding the applicable Redemption Date.

         5.  Mandatory  Redemption.  The  Company  shall not be required to make
sinking fund or redemption payments with respect to the Notes.

         6. Notice of Redemption.  Notice of redemption shall be mailed at least
30 days but not more than 60 days before the  Redemption  Date to each Holder of
Notes to be redeemed at its  registered  address.  Notes may be redeemed in part
but only in whole multiples of $1,000,  unless all of the Notes held by a Holder
are to be redeemed.  On and after the redemption date, interest ceases to accrue
on Notes or portions of them called for redemption.

         7. Denominations,  Transfer, Exchange. The Notes are in registered form
without coupons in denominations  of $1,000 and integral  multiples of $1,000 in
excess  thereof.  The  transfer  of Notes  may be  registered  and  Notes may be
exchanged as provided in the Indenture.  The Security  Registrar and the Trustee
may require a Holder,  among other things, to furnish  appropriate  endorsements
and  transfer  documents  and to pay  any  taxes  and  fees  required  by law or
permitted by the Indenture. The Security Registrar need not exchange or register
the transfer of any Note or portion of a Note selected for redemption.  Also, it
need not  exchange or register the transfer of any Notes for a period of 15 days
before the  mailing  of a notice of  redemption  of Notes,  or during the period
between a record date and the corresponding Interest Payment Date.


         8.  Defaults and  Remedies.  In case an Event of Default (as defined in
the Indenture)  with respect to the Notes shall have occurred and be continuing,
the principal hereof may be declared,  and upon such  declaration  shall become,
due and payable,  in the manner,  with the effect and subject to the  provisions
provided in the Indenture.

         9. Actions of Holders. The Indenture contains provisions permitting the
holders of not less than a majority  of the  aggregate  principal  amount of the
outstanding  Notes,  subject to certain exceptions as provided in the Indenture,
on behalf of the holders of all such Notes at a meeting  duly called and held as
provided  in  the  Indenture,  to  make,  give  or  take  any  request,  demand,
authorization,  direction,  notice,  consent, waiver or other action provided in
the Indenture to be made, given or taken by the holders of the Notes,  including
without  limitation,   waiving  (a)  compliance  by  the  Company  with  certain
provisions of the  Indenture,  and (b) certain past defaults under the Indenture
and their  consequences.  Any resolution passed or decision taken at any meeting
of the holders of the Notes in accordance  with the  provisions of the Indenture
shall be conclusive and binding upon such holders and upon all future holders of
this Note and other Notes issued upon the  registration of transfer hereof or in
exchange heretofore or in lieu hereof

         10. Persons Deemed Owners. The Company,  the Trustee,  and any agent of
the Company or the Trustee may deem and treat the Person in whose name this Note
is registered on the Security Register as its absolute owner for all purposes.

         11. Authentication. This Note shall not be valid until authenticated by
the manual signature of the Trustee or an authenticating agent.

         12.   Governing   Law.  THE  INTERNAL  LAW  OF  THE   COMMONWEALTH   OF
MASSACHUSETTS SHALL GOVERN AND BE USED TO CONSTRUE THE INDENTURE AND THE NOTES.

         13. No Personal  Liability.  THE  DECLARATION  OF TRUST OF THE COMPANY,
AMENDED AND  RESTATED ON AUGUST 21,  1995,  A COPY OF WHICH,  TOGETHER  WITH ALL
AMENDMENTS  THERETO  (THE  "DECLARATION"),  IS DULY  FILED IN THE  OFFICE OF THE
DEPARTMENT OF ASSESSMENTS  AND TAXATION OF THE STATE OF MARYLAND,  PROVIDES THAT
THE NAME  "HOSPITALITY  PROPERTIES  TRUST"  REFERS  TO THE  TRUSTEES  UNDER  THE
DECLARATION  COLLECTIVELY AS TRUSTEES,  BUT NOT INDIVIDUALLY OR PERSONALLY,  AND
THAT NO TRUSTEE, OFFICER, SHAREHOLDER, EMPLOYEE OR AGENT OF THE COMPANY SHALL BE
HELD TO ANY PERSONAL LIABILITY,  JOINTLY OR SEVERALLY, FOR ANY OBLIGATION OF, OR
CLAIM AGAINST,  THE COMPANY.  ALL PERSONS DEALING WITH THE COMPANY,  IN ANY WAY,
SHALL LOOK ONLY TO THE ASSETS OF THE  COMPANY  FOR THE PAYMENT OF ANY SUM OR THE
PERFORMANCE OF ANY OBLIGATION.

         The Company will furnish to any Holder upon written request and without
charge a copy of the Indenture. Request may be made to:

                           Hospitality Properties Trust
                           400 Centre Street
                           Newton, MA 02458
                           Telecopier No.:  (617) 969-5730
                           Attention:  President

or such other address as the Company may specify pursuant to the Indenture.

                                       -2-


                                 ASSIGNMENT FORM


To assign  this Note,  fill in the form below:  (I) or (we) assign and  transfer
this Note to


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- ------------------------------------------------------------------------------

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              (Print or type assignee's name, address and zip code)



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                  (Insert assignee's soc. sec. or tax I.D. no.)



and irrevocably appoint  ______________________________________________________
to  transfer  this Note on the books of the  Company.  The agent may  substitute
another to act for him.



Date: ______________________

                                    Your Signature: __________________________
                                    (Sign exactly as your name appears on the 
                                    face of this Note)


Signature Guarantee:                __________________________________________
                                    (The signature must be guaranteed by an 
                                    officer of a participant in a recognized 
                                    signature guarantee program. Notarized or 
                                    witnessed signatures are not acceptable.)