To be privately owned
Gundersdorf Castle

In Carinthia, Austria, stands Gundersdorf Castle, a manor house which acquired its present form in the 18th century. The listed building is situated in a park at the foot of the Sechzigerberg.
History+
The first documented mention of the locality Gundersdorf, then known as Hundreinsdorf, dates back to 1245. In the mid-18th century, Anton von Dreer transformed the main building into a manor. Since then, the exterior appearance of the castle has remained largely unchanged.
Location+
Gundersdorf Castle is located in Magdalensberg-Gundersdorf, in the Klagenfurt Land district of Carinthia, Austria, at an elevation of approximately 460 m above sea level.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Gundersdorf_02.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: 46.6558, 14.3843