The remains of the castle can be visited
Jörgenberg Castle

Jörgenberg Castle is a vanished hilltop castle on a steep 560 m above sea level high rock above the isolated settlement of Mittenweiler near the district of Mittenhausen in the municipality of Obermarchtal in the Alb-Donau district in Baden-Württemberg.
History+
The castle, built by the Counts of Berg for or by the vassal Dietrich von Jörgenberg, was first mentioned in a document in 1243 and was abandoned or destroyed before 1370.
Description of the remains of the complex+
Only rubble ridges and remains of ditches can still be seen of the former castle complex. They show an unusual and remarkably large floor plan: The core castle is rectangular, externally about 18 × 13 m with a transverse bar. On the northern narrow side, the rubble ridge is only low, indicating a ramp to the interior. This could have been the access – then the area up to the transverse bar would have been the inner castle courtyard.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Peter Kreuzmann / CC BY-SA 4.0 via Wikimedia Commons
This description is a machine translation of an excerpt from the linked Wikipedia article. The source text was written by its authors, the translation is by Mobile History; like the original it is licensed under CC BY-SA 4.0.
Location: 48.2267, 9.5410