Nero Claudius Drusus
The castle stands on a hill above the town with a wide-ranging view, which may have been the site of a Roman fortification built by Nero Claudius Drusus at "Bingium" around 10 CE. "Drusenburg" or "Drususburg" was an early name for the castle. The hill is one of three locations where local legend says that Emperor Henry IV was imprisoned by his son in 1105 or 1106, this being the first surviving mention of a castle there.