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                                                                    EXHIBIT 23.1



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
            --------------------------------------------------------

We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our report dated March 15, 2006 relating to the
financial statements, financial statement schedule, management's assessment of
the effectiveness of internal control over financial reporting and the
effectiveness of internal control over financial reporting, which appears in
Affiliated Managers Group, Inc.'s Annual Report on Form 10-K for the year ended
December 31, 2005. We also consent to the references to us under the heading
"Experts" in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
Boston, Massachusetts
June 28, 2006