Exhibit 23.1
[KPMG Letterhead]
Aspen Insurance Holdings Limited
Bermuda
Maxwell Roberts Building
1 Church Street
Hamilton, Bermuda
March 6, 2006
Dear Sirs
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the registration statements on Form F-3 (No. 333-129214) and Form S-8 (No. 333-114765) of Aspen Insurance Holdings Limited of our reports dated March 6, 2006, with respect to the consolidated balance sheets of Aspen Insurance Holdings Limited as of December 31, 2005 and 2004, and the related consolidated statements of operations, shareholders' equity, cash flows, and comprehensive income for each of the years in the three-year period endedDecember 31, 2005, and all related financial statement schedules, management's assessment of the effectiveness of internal control over financial reporting as of December 31, 2005 and the effectiveness of internal control over financial reporting as of December 31, 2005, which reports appear in the December 31, 2005, Annual Report on Form 10-K of Aspen Insurance Holdings Limited.
Yours faithfully
/s/ KPMG Audit Plc
KPMG Audit Plc
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