 The candidate her father considered was Archduke Joseph of Austria (1741-1790), who later became Emperor as Joseph II.His first wife, Isabella of Bourbon-Parma (1741-1763) had died without producing an heir and his mother, Maria Theresa (1717-1780) pressured him to remarry and produce an heir.Joseph considered marrying Isabella's younger sister Maria Louisa (1751-1819); however, she was already engaged to the Spanish heir apparent and later King Charles IV (1748-1819).