| founder of modern communism; wrote the Communist Manifesto with Engels in 1848; wrote Das Kapital in 1867 (1818-1883) | a family of United States comedians consisting of four brothers with an anarchic sense of humor |
| United States comedian; one of four brothers who made motion pictures together (1890-1977) | |
| United States comedian; one of four brothers who made motion pictures together (1891-1961) | |
| United States comedian; one of four brothers who made motion pictures together (1893-1964) | |
| United States comedian; one of four brothers who made motion pictures together (1901-1979) | |