Herbert Manfred 'Zeppo' Marx (February 25, 1901 - November 30, 1979) was an American film star, musician, engineer, theatrical agent and businessman. He was the youngest of the five Marx Brothers. He appeared in the first five Marx Brothers feature films, from 1929 to 1933, but then left the act to start his second career as an engineer and theatrical agent. Zeppo Marx was a multi-millionaire due to his engineering efforts. There are different theories to where Zeppo got his stage name: Groucho said in his Carnegie Hall concert in 1972 that the name was derived from the Zeppelin airship. Zeppo's ex-wife Barbara Sinatra repeats this in her 2011 book, Lady Blue Eyes: My Life with Frank.
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