Exhibit 3.4

AGREEMENT BETWEEN SIMON PROPERTY GROUP, INC.  AND SIMON PROPERTY GROUP, L.P.

This Agreement is made as of the 7th day of March, 2007, but effective as of August 27, 1999, by and between Simon Property
Group, Inc., a Delaware corporation and successor to Simon DeBartolo Group, Inc., a Maryland corporation ("SDG"), having a principal address of 225 W. Washington Street,
Indianapolis, Indiana 46204 (the "Company"), and Simon Property Group, L.P., a Delaware limited partnership (f/k/a Simon DeBartolo Group, L.P.), having its principal address of
225 W. Washington Street, Indianapolis, Indiana 46204 (the "Partnership").

W
I T N E S S E T H:

SDG
and the Partnership are parties to a certain agreement dated as of November 13, 1996, a true, correct and complete copy of which is attached hereto (the "Prior Agreement").
The Company, through a series of mergers, has succeeded to the interest of SDG under the Agreement and is currently the sole general partner of the Partnership. The Partnership is governed by the
terms and conditions of a certain Seventh Amended and Restated Partnership Agreement of Simon Property Group, L.P., dated August 27, 1999 (the "Restated Partnership Agreement").
Capitalized terms used but not defined in this Agreement shall have the meanings given such terms in the Partnership Agreement.

The
parties or their predecessors entered into the Prior Agreement for the purpose of describing the process by which the Partnership will have access to the funds required to redeem
Partnership Units owned by a Limited Partner based upon an election by the General Partner. Due to a scriven's error, the provisions of the Prior Agreement were not expressly incorporated into the
Restated Partnership Agreement. The parties hereto now wish to reaffirm and ratify the terms and conditions of the Prior Agreement and incorporate the same by reference into the Partnership Agreement.

NOW
THEREFORE, in consideration of the premises and for good and valuable consideration paid to the Company, the receipt and sufficiency of which are hereby acknowledged, the Company
hereby agrees to and with the Partnership as follows:



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IN WITNESS WHEREOF,the parties hereto have executed this Agreement as of the day and year first above written.

| | SIMON PROPERTY GROUP, L.P.,
a Delaware limited partnership         
| | -------------------------------------------------------------------
| | By:                                                                
| | By:                                                                
| | SIMON PROPERTY GROUP, INC.,
a Delaware corporation, general partner
| | By:                                                                

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The following document below was filed on November 20, 1996 as an Exhibit 99.1 to the third amendment to a Form S-3 of
Simon Property Group, L.P. and is being included as an attachment to the Agreement dated March 7, 2007, but effective as of August 27, 1999, with respect to the Seventh Amended
and Restated Partnership Agreement of Simon Property Group, L.P.

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EXHIBIT
99.1

THIS
AGREEMENT is made as of the 13th day of November, 1996, by and between SIMON DeBARTOLO GROUP, INC., a Maryland corporation having its principal office at National City Center,
115 West Washington Street, Indianapolis, Indiana 46204 (the "Company"), and SIMON DeBARTOLO GROUP, L.P., a Delaware limited partnership having its principal office at National City
Center, 115 West Washington Street, Indianapolis, Indiana 46204 (the "Partnership").

W
I T N E S S E T H:

The
Company is the Non-Managing General Partner of the Partnership under and pursuant to the terms of the Fifth Amended and Restated Limited Partnership Agreement of the
Partnership dated August 9, 1996 (the "Partnership Agreement"). Capitalized terms used and not defined in this Agreement shall have the meanings given such terms in the Partnership Agreement.

Under
the terms of Article 11 of the Partnership Agreement, each Limited Partner of the Partnership has the right, subject to certain conditions set forth therein, to exchange its
Partnership Units for cash or Shares, as selected by the Company as Non-Managing General Partner. If in any instance the Company selects Shares, the Company becomes obligated to acquire
the Partnership Units
in question in exchange for the issuance by it to the Limited Partner which owns such Units of Shares equal in number to the number of Units being so exchanged (subject to certain adjustments provided
for in said Article 11). If in any instance the Company selects cash, the Company becomes obligated to cause the Partnership to redeem the Partnership Units in question for a cash payment in
the amount provided for in said Article 11.

By
virtue of the above-described arrangement, the Company can impose meaningful financial obligations on the Partnership by electing that Partnership Units tendered for exchange by
Limited Partners pursuant to Article 11 of the Partnership Agreement be redeemed by the Partnership for cash, in lieu of being exchanged for Shares. In order to insure that the Partnership will
have funds to meet such obligations, the Company has agreed to enter into this Agreement.

NOW,
THEREFORE, in consideration of the premises and for good and valuable consideration paid to the Company, the receipt and sufficiency of which are hereby acknowledged, the Company
hereby agrees to and with the Partnership as follows:

1.     The
Company hereby agrees that the only manner in which it may hereafter elect to cause the Partnership redeem for cash any Partnership Units tendered for exchange
pursuant to Article 11 of the Partnership Agreement, rather than electing to acquire such Partnership Units in exchange for Shares in accordance with said Article 11, is by contributing
to the capital of the Partnership, in exchange for Additional Units, on or prior to the date of the closing established pursuant to said Article 11 for the exchange or redemption of such
tendered Partnership Units, an amount in immediately available funds sufficient to enable the Partnership to effectuate such redemption.

2.     The
Company hereby further agrees that if on the date of any closing established pursuant to Article 11 of the Partnership Agreement, the Company shall not have
made the capital contribution provided for in paragraph I above, it shall, as result, conclusively be deemed to have elected to acquire the tendered Partnership Units for Shares and shall be
obligated at such closing to issue its Shares to the tendering Limited Partner, in the quantity established pursuant to said Article 11, in exchange for such Partnership Units.

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3.     The
provisions of this Agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and assigns. The provisions of
this Agreement shall be governed by the laws of the State of Delaware.

IN
WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first above written.

| | SIMON DeBARTOLO GROUP, INC.                                
| | -----------------------------------------------------------
| | By:                                                        
| | Name: Randolph L. Foxworthy
Title: Executive Vice President
| | SIMON DeBARTOLO GROUP, L.P.                                
| | By:                                                        
| | By:                                                        
| | Name: Randolph L. Foxworthy
Title: Executive Vice President

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