Alt-Urach castle was built in the 13th century by the lords of Urach. The first document of castle dates from 1316. In the 14th and 15th centuries it belonged to the lords of Blumegg. Since 1972 it has been owned by the municipality Lenzkirch.
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.