Louis XVI (August 23, 1754 - January 21, 1793), also known as Louis Capet, was King of France from 1774 until his deposition in 1792. In 1770, at the age of 15, Louis-Auguste married the14 year old Archduchess of Habsburg, Marie Antoinette. He became king in 1774, not yet 20 years old. The government was deeply in debt and resentment to 'despotic' monarchy was on the rise. Louis XVI supported the Americans, who were seeking their independence from Great Britain, which was realized in the 1783 Treaty of Paris. The success of the American Revolution and the financial crisis occurring in dance during his reign were contributing factors to the French Revolution, which abolished the absolute monarchy in France and proclaimed a constitutional monarchy in 1791. Louis XVI enjoyed popularity among the masses, but his indecisiveness and conservatism led some to view him as a symbol of the perceived tyranny of the Ancien R矇gime. Suspended and arrested as part of the insurrection of 1792, he was tried by the National Convention, found guilty of high treason, and executed by guillotine on January 21, 1793 as a desacralized French citizen known as "Citizen Louis Capet", bringing to an end more than a thousand years of French monarchy. Louis XVI is the only King of France ever to be executed.