The medieval castle Nanstein near Landstuhl in the West Palatinate (Rhineland-Palatinate) was built around 1160 by Emperor Barbarossa. It owes its current fame to a later owner, the rebellious knight …
The Altenburg (Deinsberg Castle Ruins): It was probably built in the second half of the 12th century. At that time, Emperor Barbarossa had several castles built to secure his country's …