The remains of the Castle can be visited
Dietfurth Castle (Ruin)
The Dietfurth Ruin, a former hilltop castle, stands on a rock embraced by the Danube River. This site in Inzigkofen-Dietfurth is known for the underlying Dietfurth Cave, which ranks among the archaeological sites in Southern Germany.
History+
The origins of Dietfurth Castle date back to the 11th century, but the rock was inhabited much earlier. Archaeological finds in the Dietfurth Cave provide evidence of human presence from the Stone Age to the 16th century. The name “Dietfurth” itself, derived from the Old High German “Diota” (people), indicates early settlement. The name Dietfurth was first documented in 1095 in connection with Alpirsbach Monastery. In 1132, the Truchsess of Waldburg relinquished the imperial fief of Dietfurth in favor of Count Mangold II of Nellenburg, as the nobles of Dietfurth had already died out by then. The castle itself was first documented in 1274.
Source: Wikipedia · Licence: CC BY-SA 4.0
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: 48.0782, 9.1393