The Château de Dinan consists of a keep and gate, which are part of the 2,600 metres of medieval ramparts which still surround the old town. The keep is called Donjon de la duchesse Anne (Keep of the Duchess Anne), and stands 34m high near the Saint Louis gate. John V, Duke of Brittany built the keep in 1382-1383. The keep is formed by a union of two tall circular towers; a moat and drawbridge divides the keep from the outside of the ramparts as well as from the inside of the city, providing a stronghold both against outsiders and from the townspeople themselves. Extensive machicolations overhang the wall head providing defensive coverage of the base of the tower. Château de Dinan is owned by the commune and houses the local museum.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.