To be privately owned
CastleGrabern-Mittergrabern
Mittergrabern Castle

History of the Building+
The castle was expanded and rebuilt in 1536. In 1834, the tower and attic floor were removed, and the complex was extended in 1874 by adding two wings and a staircase at the rear. A restoration took place in 1986-87. Owners included the Lords of Roggendorf and the Count Waldstein family.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Mittergrabern_Schlo%C3%9F1.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: 48.6188, 16.0159