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Archduchess Maria Antonia of Austria German: Maria Antonia, Erzherzogin von Österreich-Toskana (13 July 1899 – 22 October 1977) was a daughter of Archduke Leopold Salvator of Austria and Infanta Blanca of Spain. She was member of the Tuscan branch of the Imperial House of Habsburg-Lorraine, an Archduchess of Austria and Princess of Tuscany by birth. In 1919, after the dissolution of Austria-Hungary, she moved with her family to Spain. In 1924 she married Ramón de Orlandis y Villalonga, a Spanish aristocrat. When she became a widow during the Spanish Civil War, Archduchess Maria Antonia moved permanently to South America where she remarried.