Margaret Stuyvesant Rutherfurd Murat (November 11, 1891 – February 10, 1976) was an eccentric American heiress, dancer and sometime actress.

[2] After her father's death in 1901, her mother remarried to William Kissam Vanderbilt, the first husband of Alva Erskine Smith.

She was a member of the cast of Gavrilov's ballet, Her Majesty's Escapade at the Gallo Theatre, appearing under her maiden name, Margaret Stuyvesant Rutherfurd.

On September 20, 1911, she married her first husband, Ogden Livingston Mills (1884–1937)[9] at her stepfather's Château Du Quesney in Vatteville-la-Rue, France.

[6][13] In July 1929, she married Prince Charles Michel Joachim Napoléon (1892–1973) at the Church of St. Francois the Savior in Paris with Jacques Balsan (the second husband of her stepsister Consuelo) as a witness.

[14] On October 25, 1939, she married portrait painter Frederick Leybourne Sprague (1907–1993) at a private ceremony in Lynbrook on Long Island.