CONFIRMING STATEMENT

This Statement confirms that the undersigned, Eugene Bullis,
has authorized and designated each of J. Kendall Huber,
Charles F. Cronin, Walter H. Stowell, and Matthew R. Frascella, acting
singly, to execute and file on the undersigned's behalf, individually
and in the undersigned's capacity as a trustee for various family
trusts, all Forms 3, 4 and 5 (including any amendments thereto) that
the undersigned may be required to file with the Securities and
Exchange Commission as a result of the undersigned's ownership of or
transactions in securities of The Hanover Insurance Group, Inc.
The authority of J. Kendall Huber, Charles F. Cronin, Walter H.
Stowell, and Matthew R. Frascella under this Statement shall continue
until the undersigned is no longer required to file Forms 3, 4 and 5
with regard to the undersigned's ownership of or transactions in the
securities of The Hanover Insurance Group, Inc., unless earlier
revoked in writing.  The undersigned acknowledges that
J. Kendall Huber, Charles F. Cronin, Walter H. Stowell, and
Matthew R. Frascella are not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

/s/ Eugene Bullis
Dated: October 27, 2015