Schengen Castle dates from 1390 but it was was torn down by the industrialist Jean-Nicolas Collart in 1812. He built a residential manor house in its place and now Schengen Castle is a hotel and conference centre.
All that remained of the medieval building was its round central tower. The castle's most famous visitor was certainly Victor Hugo who visited the Collarts in 1871 and made a sketch of the old tower.
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.