The Château de Pierre-Percée ('pierced rock castle') in the commune of Pierre-Percée. The site in the early 12th century was in possession of Agnès, countess of Bar and widow of the count of Langenstein. She married Hermann II, Count of Salm and son of Hermann I, King of Germania (Eastern Francia). A well dug (~30 m) into the rock gives the village and the castle their name. The territory, which included the towns of Badonviller (which became the capital of the county) and Blâmont, became for several hundred years part of the hereditary property of the Counts of Salm. Around 1134, Hermann II went to war allied to the Duke of Lorraine against the Count of Bar and Stephan of Bar, the Bishop of Metz, himself a member of the Bar family. Hermann was killed on the battlefield outside the Château de Frouard. The castle at Pierre-Percée was besieged for a year and fell into the hands of the bishop of Metz with the death of Hermann's eldest son.
The castle was not besieged again until the Thirty Years' War (1618-1648) when, being deserted, it was destroyed by Franco-Swedish troops.
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.