Klusenstein Castle

Klusenstein is a castle in Hemer, Germany, located on a 60m high cliff above the valley of the Hönne river.

The castle was built in 1353 by Gerhard of Plettenberg, a vassal of earl Engelbrecht III of the Mark.

During the feud between earl Engelbert and Gottfried IV of Arnsberg, the castle was under siege in 1366 but did not fall.

When the last Earl of Arnsberg, Gottfried IV, sold the earldom to the bishop of Cologne, the castle lost its importance.

There were legends about a secret escape route out of the castle, in 2003 the top entrance to the cave was found below the eastern palais destroyed in 1840.