Exhibit 24

POWER OF ATTORNEY

The undersigned officers and directors of Markel Group Inc. (the Company) hereby appoint Thomas S. Gayner, Michael R. Heaton, Richard R. Grinnan and Brian J. Costanzo (each with full power to act alone), as their true and lawful attorneys-in-fact, and grant unto each of them the authority in their name and on their behalf to execute and file (individually and in the capacity stated below) any documents relating to the filing of any Registration Statement on Form S-8, and the registration by the Company of common shares in connection with the Markel Group Inc. 2024 Equity Incentive Compensation Plan, and any and all amendments (including post-effective amendments) or supplements thereto, with all exhibits and documents required to be filed in connection therewith. The undersigned further grants unto each of them full power and authority to perform each and every act necessary in order to accomplish the foregoing registration as fully as the undersigned might do.

IN WITNESS WHEREOF, each of the undersigned has signed this power of attorney this 21st day of May, 2024.

/s/ Thomas S. Gayner     Thomas S. Gayner, Chief Executive Officer and Director (Principal Executive Officer)	/s/ Morgan E. Housel     Morgan E. Housel, Director
/s/ Brian J. Costanzo     Brian J. Costanzo, Chief Financial Officer (Principal Financial Officer)	/s/ Diane Leopold     Diane Leopold, Director
/s/ Meade P. Grandis     Meade P. Grandis, Chief Accounting Officer and Controller (Principal Accounting Officer)	/s/ Anthony F. Markel     Anthony F. Markel, Director
/s/ Steven A. Markel     Steven A. Markel, Chairman of the Board and Director	/s/ Harold L. Morrison, Jr.     Harold L. Morrison, Jr., Director
/s/ Mark M. Besca     Mark M. Besca, Director	/s/ Michael O’Reilly     Michael O’Reilly, Director
/s/ Lawrence A. Cunningham     Lawrence A. Cunningham, Director	/s/ A. Lynne Puckett     A. Lynne Puckett, Director
/s/ Greta J. Harris     Greta J. Harris, Director