To be privately owned
Laibach Castle

In Dörzbach-Laibach, Laibach Castle stands, once a fortified complex. This historic structure in Baden-Württemberg today features restored facade paintings.
History+
The origins of Laibach Castle date back to 1307, when the then-fortress was first mentioned and owned by the Lords of Aschhausen. From 1422, ownership passed to the Lords of Berlichingen, who held it as a Limpurg fief. In 1471, the castle was conquered and destroyed by Count Palatine Friedrich, as it was considered a robber baron's nest. The Capler von Oedheim, also known as Bautz, acquired the manor in 1607 and sold it in 1615 to Erhard von Muggenthal, a Mainz official from Bavaria. Under his patronage, a reconstruction in Renaissance style took place between 1615 and 1629, transforming it into a three-story, four-winged complex.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: https://commons.wikimedia.org/wiki/File:20121230_Burg_Laibach_%28D%C3%B6rzbach%29_3.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: 49.3996, 9.6904