The remains of the Castle can be visited
Altbodman Castle
Southeast of Bodman in the municipality of Bodman-Ludwigshafen in the district of Konstanz is the Altbodman castle ruin. It was the former seat of the Lords of Bodman.
History+
The origins of Altbodman Castle date back to 1170, when it was built as the residence of the Lords of Bodman, ministerials of the Staufer dynasty. Its predecessor on today's Frauenberg was destroyed in 1307 by a lightning strike and subsequent fire, killing numerous nobles. Only the one-year-old Johannes von Bodman survived. Under his aegis, the present Altbodman castle ruin was built, completed in 1332. During the Swiss War in 1499, the castle suffered damage and was later expanded into a fortress. However, it also fell victim to the Thirty Years' War and was destroyed by French troops in 1643.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://de.wikipedia.org/wiki/Datei:Ruine_Altbodman.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: 47.7945, 9.0321