HANOVER INSURANCE GROUP, INC. FILES (8-K) Disclosing Change in Directors or Principal Officers

Item 5.02 Departure of Directors or Certain Officers; Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On July 19, 2022, the Board of Directors elected Elizabeth A. Ward to the Board
of Directors of The Hanover Insurance Group, Inc. (the "Company"). Ms. Ward, 58,
has served as Chief Financial Officer of Massachusetts Mutual Life Insurance
Company ("MassMutual"), a mutual life insurance company, since June 2016. She
has previously served as Executive Vice President and Chief Actuary of
MassMutual from June 2015 to November 2019, and as Chief Enterprise Risk Officer
from November 2007 to May 2016. Prior to joining MassMutual affiliate Babson
Capital Management in 2001, Ms. Ward worked in investment portfolio management
and actuarial roles at American Skandia Life Assurance Company, Charter Oak
Capital Management and Aeltus Investment Management, a subsidiary of Aetna Life
& Casualty Company.

To balance our classes of directors, Ms. Ward will serve in the class of
directors whose term expires at the Company's 2023 annual meeting of
shareholders. Ms. Ward has been appointed to the Board's Audit Committee. The
Board has determined that Ms. Ward is independent under the New York Stock
Exchange rules and under the Company's Corporate Governance Guidelines, which
can be found on the Company's website at www.hanover.com.

Ms. Ward will receive the same compensation for her service on the Company's
Board of Directors as the Company's other nonemployee directors, as described in
Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q that was filed with
the Securities and Exchange Commission on August 1, 2019, but pro-rated to
reflect that she was appointed mid-term.

Also on July 19, 2022, the Board of Directors appointed Mr. Francisco A.
Aristeguieta to the Board's Compensation and Human Capital Committee. Mr.
Aristeguieta's election to the Board was previously announced and reported on
June 13, 2022.

                                       2

--------------------------------------------------------------------------------