Marx Brothers, American comedy team that was popular on stage, screen, and radio for 30 years. They were celebrated for their inventive attacks on the socially respectable and upon ordered society in general. Five Marx brothers became entertainers: Chico Marx (original name Leonard Marx; b. March 22, 1887, New York, New York, U.S.—d. October 11, 1961, Hollywood, California), Harpo (original name Adolph Marx, later Arthur Marx; b. November 23, 1888, New York City—d. September 28, 1964, Hollywood), Groucho (original name Julius Henry Marx; b. October 2, 1890, New York City—d. August 19, 1977, Los Angeles, California), Gummo (original name Milton