The remains of the castle can be visited
Kastelberg Castle
The Kastelberg castle remains are on a conical hill in Ballrechten-Dottingen.
History+
The hilltop castle was built in the 12th century. It is presumed that the Lords of Üsenberg were the builders, although no direct evidence exists for this. A documentary mention of a “Rudofus de Castilhovin” in 1203 indicates the presence of a castle on the Castellberg. In 1342, the complex was already referred to as a 'Burgstall' (castle site) in the Tennenbach property register. Archaeological finds confirm that the mountain was already settled in the Bronze Age, Urnfield culture, and Hallstatt period, and was fortified with a rampart in prehistoric times. Roman settlement, however, could not be confirmed.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Burgrest_Kastelberg_02.JPG
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 47.8510, 7.7049