To be privately owned
Can be rented for events
Hohenstadt Castle

In Abtsgmünd-Hohenstadt in the Ostalb district, Baden-Württemberg, Germany, Hohenstadt Castle stands at 504 meters above sea level, forming a unified complex with its associated castle church. This structure, owned by the Adelmann von Adelmannsfelden family, features staircases with unusually shallow steps.
History+
The castle's origins date back to 1549, when its hedge garden was first documented. The castle underwent two renovations in the 16th and 17th centuries before achieving its current Baroque form around 1760. The Hohenstadt Castle and Pilgrimage Church was constructed under Wilhelm Adelmann in just four years, from 1707 to 1711, and is considered an example of Vorarlberg Baroque architecture.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://de.wikipedia.org/wiki/Datei:Schlosskirche_und_Schloss_Hohenstadt.jpg
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: 48.9000, 9.9385