The remains of the Castle can be visited
Neudahn Castle

The castle ruin Neudahn, a rock castle in the southwestern Palatinate Forest near the town of Dahn, is a typical example of the castle architecture of the Dahn rock region. Its strategic location once allowed control of trade routes through the Wieslauter Valley.
History+
The construction of Neudahn Castle likely occurred shortly before 1240, commissioned by the Bishop of Speyer, Konrad IV of Dahn. Heinrich von Dahn, also known as Heinrich Mursel von Kropsberg, was the executing ministerialis and probably received the castle as a hereditary fief. The complex was first mentioned in a document on May 3, 1285. After the extinction of Mursel's family, the castle passed into the possession of the Altdahn line. Neudahn was burned down in the Four Lords' War around 1438 and rebuilt, but suffered damage again in the Peasants' War in 1525.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://www.wehrbauten.de/thread.php?threadid=1477
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: 49.1631, 7.7573