Laufenburg is a castle located in the municipality of Langerwehe in the state of North Rhine-Westphalia. The castle was first mentioned in historical records in the 13th century and is believed to have been built in the 12th century. It is a typical example of a medieval hill castle, with a rectangular keep and a surrounding wall with four corner towers.
Throughout its history, Laufenburg has been owned by a number of noble families, including the Lords of Heinsberg and the Dukes of Jülich. In the 20th century it was restored after been damaged in the World War II. Today it has an restaurant.
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.