Exhibit 24

CONFIRMING STATEMENT

This Statement confirms that the undersigned, Ralph B. Levy, has
authorized and designated each of Stephen H. Weinstein, Mark A. Wilcox, Diana R.
Davies, Anthony E. Szydlowski and Jacqui van Beelen (each with full power of
substitution) to execute and file any Statements of Changes of Beneficial
Ownership of Securities on Form 3, Form 4 or Form 5) on the undersigned's behalf
(including any supplements or amendments thereto) that the undersigned is
required to file with the U.S. Securities and Exchange Commission as a result of
the undersigned's ownership of or transactions in securities of RenaissanceRe
Holdings Ltd. The authority of such persons under this Statement shall continue
until August 15, 2010, unless earlier revoked in writing. The undersigned
expressly acknowledges that none of the above persons is assuming any of the
undersigned's responsibilities to comply with Section 16 of the Securities and
Exchange Act of 1934.



Dated as of: August 15, 2007



/s/ Ralph B. Levy
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Ralph B. Levy