Wife of Louis XVI of France, 1770, daughter of Empress Maria Theresa, born Vienna, 1755; died Paris, 1793. She was unpopular in France for her extravagance, for her disdain of the immoral Mme. du Barry, and particularly for favoring Catholic Austria against her growing rival, Prussia, which being a Protestant power was preferred by the French philosophers. During the Revolution she was arrested, August 1792, and guillotined October 16, 1793.