To be privately owned
Dornhof Castle

In Carinthia, Austria, Dornhof Castle is a structure situated on a terrace on the eastern slope of the Lorenziberg. It has a castle-like appearance and a history dating back to the 15th century.
History+
The origins of the current Dornhof Castle can be traced back to an older castle complex, first documented in 1162 and now known as Altdornhof. However, only a few remnants of its walls remain. The present, solidly built castle was originally constructed in the late 15th century. In 1560, Martin (or Daniel) von Staudach was named as its builder. It is believed that the castle was renovated and expanded in the second half of the 16th century. In 1589, the brothers Georg and Ehrenreich Megerl acquired the estate and later received the predicate "von und zu Dornhof". After a brief period in the possession of the city of St. Veit in the late 18th century, it was auctioned in 1797 and subsequently changed owners frequently. Since 1888, Dornhof Castle has been owned by the Kampl family.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Dornhof_Schloss_19042007_3300x2209_05.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: 46.7741, 14.3309