Exhibit 31.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO RULE 13a-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934
I, Edward K. Aldag, Jr., certify that:
| 1) | | I have reviewed this annual report on Form 10-K/A of Medical Properties Trust, Inc. |
| 2) | | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; |
| 3) | | Based on my knowledge, the other financial information included in this report is fairly presented in all material respects as of, and for, the periods presented in this report. |
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| Date: April 22, 2008 | /s/ Edward K. Aldag, Jr. | |
| | Edward K. Aldag, Jr. | |
| | Chairman, President and Chief Executive Officer | |
