Exhibit 99.1


  Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350,
        as Adopted Pursuant to Section 906 of Sarbanes-Oxley Act of 2002

I, Ronald Rubin, the Chief Executive Officer of Pennsylvania Real Estate
Investment Trust (the "Company"), hereby certify, pursuant to 18 U.S.C. Section
1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002,
that:

(1) the Form 10-Q of the Company for the quarter ended March 31, 2003 (the "Form
10-Q"), fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2) the information contained in the Form 10-Q fairly presents, in all material
respects, the financial condition and results of operations of the Company.



Dated: May 15, 2003               Ronald Rubin
                                  ------------------
                                  Name: Ronald Rubin
                                  Title: Chairman and Chief Executive Officer


A signed original of this written statement required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.