EX-23.1 2 sirius11kconsent2012-ex231.htm EXHIBIT 23.1

Sirius 11K Consent 2012 - EX 23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement No. 333-82563 on Form S-8 of White Mountains Insurance Group, Ltd. of our report dated June 20, 2013, appearing in this Annual Report on Form 11-K of the Sirius International Holding Company, Inc. 401(k) Savings and Investment Plan for the year ended December 31, 2012.    

/s/ Crowe Horwath LLP

New York, New York

June 20, 2013