Duchess Marie Thérèse of Württemberg (German: Marie Therese Nadejda Albertine Rosa Philippine Margarethe Christine Helene Josepha Martina Leopoldine Herzogin von Württemberg;[1] born 12 November 1934[1]) known as Duchess of Montpensier, is a German-born aristocrat. She is a daughter of the claimant to the royal throne of Württemberg. She was the first wife of Prince Henri, Count of Clermont. They were married from 1957 to 1984.