Louis XVII (born Louis Charles, Duke of Normandy; 27 March 1785 – 8 June 1795) was the younger son of King Louis XVI of France and Queen Marie Antoinette. His older brother, Louis Joseph, Dauphin of France, died in June 1789, a little over a month before the start of the French Revolution. At his brother's death he became the new Dauphin (heir apparent to the throne), a title he held until 1791, when the new constitution accorded the heir apparent the style of Prince Royal.