The Château de Chenonceau is a French château spanning the river Cher, near the small village of Chenonceaux, Indre-et-Loire, Centre-Val de Loire. It is one of the best-known châteaux of the Loire Valley. The estate of Chenonceau is first mentioned in writing in the 11th century. The current château was built in 1514–1522 on the foundations of an old mill and was later extended to span the river.