The remains of the Castle can be visited
Hohengeroldseck Castle

The Hohengeroldseck castle ruin is perched on a hill in the Black Forest, between the Kinzig and Schutter valleys, near Seelbach in Baden-Württemberg. As the former ancestral seat of the Lords of Geroldseck, it is a striking testament to medieval architecture and continues to shape the landscape of the Ortenau region.
History+
Around 1260, the hilltop castle was built by Walther von Geroldseck on the Schönberg. Following the division of the land in 1277, it became the center of the “Upper Lordship” of Hohengeroldseck, which existed until the end of Geroldseck rule in 1634. This territory included Lahr, Mahlberg, Schiltach, and the monasteries of Schuttern and Ettenheimmünster. In 1442, Margrave Jakob I of Baden acquired half of the Lordship of Lahr and Mahlberg for 30,000 guilders. In 1486, the castle fell to the Electoral Palatinate after Count Palatine Philipp conquered it, remaining under their control until 1534. At the end of the 16th century, specifically in 1599, the Geroldsecks relocated their main residence to the converted Dautenstein Castle in Seelbach. In January 1689, the castle was destroyed by French troops during the Nine Years' War. Since 1697, the ruin has belonged to the House of von der Leyen.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: © BraCom (Bram)
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: 48.3323, 7.9799