Karneid Castle was probably constructed between the late 12th and early 13th centuries by vassals of the Prince-Bishopric of Brixen, an imperial estate of the Holy Roman Empire. The fortress stands perched dramatically on an inaccessible cliff face above the confluence of the Eggental and the Eisack rivers, on the historically resonant ancient border between the kingdoms of the Lombards and the Bavarii. The name 'Karneid' derives from the Latin 'cornus' meaning “horn”.
The courtyard with its fountain, the free-standing staircases and two-story loggia are especially worth noting for their picturesque quality.
Guided tours are available in the months of May, June, September and October.
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.