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

Schöneberg Ruin+
The Schöneberg Ruin, also known as Schönberg or Schöneburg, is a former tower castle, inhabited from the 10th to the 11th century.
History+
The origins of Schöneberg Castle date back to the 10th and 11th centuries, when it was used by the abbots of Kempten Monastery and an unknown knightly family. The castle was first documented in 1400 when Walter von Königsegg zu Wartenstein pledged it to the knight Heinrich von Nauns. As early as 1405, the pledge was reversed, and the castle was sold to Kempten Abbey under Prince-Abbot Friedrich von Laubenberg, a transaction confirmed by Emperor Sigismund in 1436. From the 17th century onwards, the complex began to decay. By the end of the 19th century, a partially preserved four-story tower ruin was still visible, but it lost three of its walls around 1950 during the installation of a water reservoir.
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: 47.7075, 10.3899