The remains of the Castle can be visited
Rauhlaubenberg Castle (Ruin)

On a wooded hill spur in the Bavarian Oberallgäu are the remains of the Rauhlaubenberg ruin, once a hilltop castle. Today, only the residential tower and traces of its past remain.
History+
Rauhlaubenberg Castle was probably built by the Counts of Montfort at the beginning of the 13th century. Around 1265, they granted the lordship as a fief to the Lords of Laubenberg, a ministerial family who also inhabited the neighboring Laubenbergerstein Castle. In 1390, after the death of Rudolf IV of Montfort-Feldkirch, the lordship fell to Austria. During a feud in 1414, the castle was captured by Ulrich von Heimenhofen, but returned to Völk von Laubenberg a year later through mediation, with Heimenhofen securing a right of access. After Völk's death in 1423, his brother Hans inherited the fief, which later passed to his sons Jos and Kaspar. During the division of family property in 1464, Hans, Jos's son, received Rauhlaubenberg.
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: 47.5644, 10.2491