The remains of the Castle can be visited
Güssenberg Castle

The Güssenberg Castle Ruin, a testament to High Medieval architecture, stands on a hill spur above Hermaringen in Baden-Württemberg. Significant remains of the curtain wall and the keep are still preserved from the complex.
History+
Güssenberg Castle was the ancestral seat of the Lords of Güssenberg, a widespread family that at times controlled numerous surrounding areas. A Diepold Gusse was first documented in 1171 as a witness in imperial documents. In 1328, the feudal suzerainty passed to the Counts of Helfenstein. Around 1350, the castle was reinforced with the construction of a shield wall and other alterations. After the extinction of the Güssen von Güssenberg, the fief passed to the Güssen von Haunsheim, who sold it to the Counts in 1372. Güssenberg Castle subsequently served as the administrative center of the comital possessions in the Brenz Valley. In 1448, the lordship passed to the House of Württemberg.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: https://commons.wikimedia.org/wiki/File:Burg_Guessenburg.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: 48.6006, 10.2469