Maria Antonia of Austria
Maria Antonia of Austria (Marie Antonia von Österreich) (Maria Antonia Josepha Benedicta Rosalia Petronella; 18 January 1669 – 24 December 1692) was the eldest daughter and only surviving child of Leopold I, Holy Roman Emperor and his first wife Margaret Theresa of Spain. She became the heiress to Habsburg Spain when her mother died in 1673.