To be privately owned
CastleNeuhofen an der Ybbs-Haagberg
Haagberg Castle

The History of the Castle+
The castle was built from 1748 to 1772 and, after a period of decay, was renovated and rebuilt in 1850 under Countess Pauline Zichy.
From Baroque Residence to Modern Museum+
Originally conceived as a baroque residence for the noble family, the castle underwent numerous transformations over the centuries.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:2011.12.20_-_Neuhofen_-_Gut_Haagberg_-_01.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: 48.0517, 14.8506