Its predecessor was Hunnesrück Castle, which the counts of Dassel had built in the 13th century. In 1521 during the Hildesheim Diocesan Feud it was bombarded with heavy cannon from the heights of Hatop and captured by Eric I together with Henry the Younger of Wolfenbüttel. The destroyed castle lies in the Amtsberge hills north of Dassel and about 3 km west of the Erichsburg on a steep-sided eminence. Today only the remains of walls and ramparts are left.