Unterhof Castle was first mentioned in a document in 1185. It served as the seat of the stewards of Diessenhofen. In Rudolf of Habsburg in 1264, who incorporated the stewards of Diessenhofen into his service. Until 1399, the castle was expanded with the two-part east wing (northeast and southeast tracts) and the keep, as well as reinforced with a new defensive wall.
Unterhof has been renovated extensively since 1990. The old part of the castle continues to function as a restaurant.
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.