Definition of charles martel:
(N) :
Charles Martel (– 22 October 741), Martel being a sobriquet in Old French for "The Hammer", was a Frankish political and military leader who, as Duke and Prince of the Franks and Mayor of the Palace, was the de facto ruler of the Franks from 718 until his death.
(N) :
(born Karl David Hanke, March 5, 1860 – May 15, 1945) an American librarian responsible for the creation of the Library of Congress Classification; he is often considered to be one of the most influential librarians in American library history.
(N) :
(c. 688–741) a Frankish military and political leader.