Maria Theresa Walburga Amalia Christina ( ; 13 May 1717 – 29 November 1780) was the only female ruler of the
Habsburg dominions and the last of the
House of Habsburg. She was the sovereign of
Austria,
Hungary,
Croatia,
Bohemia,
Transylvania,
Mantua,
Milan,
Lodomeria and Galicia, the Austrian Netherlands and
Parma. By marriage, she was
Duchess of Lorraine,
Grand Duchess of Tuscany and
Holy Roman Empress.