The daughter of Austrian Archduchess Maria Theresa and Holy Roman Emperor Francis I, Marie Antoinette was the queen of France and wife of King Louis XVI. Her devotion to Austria, reputation for extravagance, and connection to scandals made her unpopular and helped to provoke the French Revolution. After the storming of the Tuileries palace, she and Louis were accused of treason. The king was executed, and Marie was tried, found guilty, and guillotined. Did she really say "Let them eat cake"? Discuss (http://forum.thefreedictionary.com/postst19819_Marie-Antoinette-Guillotined--1793-.aspx)
Free Dictionary Encyclopedia
Pardon moi, but Maria Theresa was Empress of Austria, and Maria Antonia aka Marie Antionette, was archduchess of Austria. Her son did not become co regent until his coming of age, and, even then, bowed to his mother's authority.