Demi Mondaine (1901-1970) of Rannel, Rhode Island was the first woman multi-millionaire. Born into poverty, this clever entrepreneur earned her vast fortune in the entertainment and personal service industries. Miss Mondaine is believed to have invented the "franchise chain" concept. She opened her first "Lupanar Club" in Boston 1925. By 1933 there was one on a back street in every major U.S. city. Late in life she retired to the Cyprian Islands where was elected an honorary quean by the local population. An avid housekeeper, Demi was famous for her tarts.

Source : Drazel, Doxie. Madam Demi : A Working Girl's Life, 1941.