Barbara Marx Sinatra was an American model philanthropist but was famous as Frank Sinatra’s fourth wife. Before Frank, the gorgeous Blue-eyed beauty was married twice to Robert Oliver and Zeppo Marx. Barbara Sinatra son Bobby Oliver Marx was born on October 10, 1950. Interestingly, it is well known that Barbara welcomed only one child throughout her lifetime, having married three individuals. However, Google suggests two kids when in fact, Robert Oliver Marx and Bobby Oliver Marx are the same people. Sadly, Bobby Oliver Marx’s parents divorced in 1952 when he was only two years old. Furthermore, his mother, Barbara, married her second husband, Zeppo Marx, in 1959.
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