The Château du Bernstein is a ruined castle in Dambach-la-Ville. It is among the oldest in Alsace. It was first mentioned at the beginning of the 11th century, though the northern surrounding wall can be dated to prehistoric times. The upper castle with keep, manor house and advanced works probably dates from the end of the 12th and early 13th centuries. In the Gothic era, the manor house was separated from the keep by a ditch, transformed later into a cistern. Towards the end of the 15th century, the St. Marguerite tower, so called from the name of the chapel there, was built in the rear courtyard.
Around 1835, Félix Dartein cleared the ground of the lower castle to build a house and some outbuildings which have disappeared.
Originally, the castle belonged to the Counts of Eguisheim Dabo. After the siege of 1227, it became the property of the bishop of Strasbourg and seat of the episcopal bailiffs until 1580.
The Château du Bernstein is state property and has been listed as a monument historique by the French Ministry of Culture since 1931.
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.