Marx Brothers made a guest appearance to introduce the "Tonight Show's" new host, Johnny Carson. Around 1960, the acclaimed director Billy Wilder considered writing and directing a new Marx Brothers film. Tentatively titled "A Day at the U.N.", it was to be a comedy of international intrigue set around the United Nations building in New York. Wilder had discussions with Groucho and Gummo, but the project was put on hold because of Harpo's ill-health and abandoned when Chico died in 1961. He was 74. Three years later, on September 28, 1964, Harpo died at the age of 75 of a heart attack
Heinrich Marx of their disagreements, Karl always retained a strong affection for his father, his daughter Eleanor writing “he never tired of talking about him, and always carried an old daguerreotype photograph of him”. On Karl's death, Engels laid the photograph in his coffin. Heinrich Marx Heinrich Marx (15 April 1777, Saarlouis – 10 May 1838, Trier) was a lawyer and the father of the socialist philosopher Karl Marx. Heinrich Marx was born Heschel Levi, to Marx Levy Mordechai (1743–1804) and Eva Lwow (1753–1823). Heinrich Marx's father was the rabbi of Trier, a role which his older brother would later assume. Heinrich