Riedheim Castle was built in the 13th and 14th centuries and was owned by the von Randegg family. The castle was allegedly damaged in the Swiss War and around 1500 the residential tower was probably raised and the courtyard portal expanded. In 1518 the castle was owned by Hans von Schellenberg and in 1609 by Konrad Vintler von Plätsch. In 1601 the property went to Archduke Leopold of Austria and in 1735 it was sold to the Petershausen Monastery. In 1803 the castle came to the Margraves of Baden and was sold to the municipality of Riedheim in 1841.
After the tower roof collapsed on May 20, 1951 and the top gable broke off, the top floor was restored in 1957. 1976 to 1978 the castle was restored.
The rectangular castle complex comprises a bering of around 38 by 27 meters with a rectangular residential tower in the middle with late Gothic stepped gables. The four-storey residential tower on an area of approximately 12.35 by 8.7 meters is 27 meters high with the high entrance 4.5 meters high. The wall thickness of the tower shows a thickness of 1.5 meters on the ground floor and a thickness of one meter from a height of three meters.
The curtain wall is around 1.2 meters thick and has scales built on the inside. The arched entrance (around 1550) is on the west side. The castle was surrounded by a moat and probably a rampart. The castle can only be viewed from the outside.
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.