Fontaine-l'Évêque Castle was first constructed here by Nicolas de Fontaine in the 13th century. Nicolas's sister, wife of Baudouin de Hennin-Liétard, inherited it, after which it went on to become the property of renowned families such as the Hamals, Herzelles and Rodoans. In the 16th-18th centuries the castle was completely restored and was given a more refined interior. In the 19th century the Bivort de la Saudée family renovated the castle once more.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.