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; |
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| Date: August 30, 2007 | | /s/ Edward K. Aldag, Jr. | | |
| | | | | |
| | | Edward K. Aldag, Jr. | | |
| | | Chairman, President and | | |
| | | Chief Executive Officer | | |
