Frederick I. built the caste in the 12th century. Four centuries later, the castle was restored and expanded and now it is still in this family property. These are the descendants of the famous minstrel, Oswald von Wolkenstein. The many uninhabited premises of the fort are used as a museum and are open to interested visitors from May to October. The interior has been issued from the late Renaissance.
Another sight in the castle are the frescoes, which were discovered in 1972. The eleven frescoes were painted in the Middle Ages and show the legend of "Iwein", one of King Arthur’s Knights of the Round Table.