Château de Montigny-le-Gannelon is a Renaissance-style château dating from 1495, located in Cloyes-les-Trois-Rivières in southern Eure-et-Loir on the borders of the Beauce and Perche regions. Overlooking the Loir valley, the castle features Renaissance architecture on its west façade, remodeled in 1876 by a student of Viollet-le-Duc, and encompasses six reception rooms and twenty apartments across its 15-hectare park. Remarkable for being inhabited by the same family for approximately 200 years, the château welcomes guided tours led by its owners on select days, showcasing the ladies' salon, grand salon, billiards room, and kings' dining room.