Grand Trianon of the Regent Philippe d'Orléans and she was a niece of Marie Antoinette. In October 1837 Marie d'Orléans (daughter of Louis Philippe I) married Alexander of Württemberg at Trianon In 1920, the "Grand Trianon" hosted the negotiations and signing of the Treaty of Trianon, which left Hungary with less than one-third of its pre-World War I land size. To Hungarians, the word "Trianon" remains to this day the symbol of one of their worst national disasters. In 1963 Charles de Gaulle ordered a renovation of the building. A popular site for tourists visiting Versailles, it is one of the French
History of the Palace of Versailles Under the aegis of , chief conservator of the museum from 1952 to 1980, the palace witnessed some of its most ambitious conservation and restoration projects: the Opéra (completed in 1957); the Grand Trianon (1965); the Chambre de la Reine (1975); the Chambre de Louis XIV and the Hall of Mirrors (1980). At this time, the ground floor of the northern wing was converted into a gallery of French history from the 17th century to the 19th century. Additionally, at this time, policy was established in which the French government would aggressively seek to acquire as much of original furniture