To be privately owned
Merkenstein Castle

Near Großau, a cadastral community of Bad Vöslau in Lower Austria, Merkenstein Castle rises, a building in Tudor style. It is considered the first of its kind in Austria.
History+
The origins of the estate date back to the early 19th century, when Joseph Carl Graf Dietrichstein had a country house built in Swiss style between 1801 and 1803. His wife Elisabeth designed the accompanying castle garden, which was supplemented by historicizing elements such as a hermitage and a lookout tower. An older chapel from the 16th century was renovated during this period. In 1829, Joachim Eduard Graf Münch-Bellinghausen acquired the Merkenstein estate. He had the existing country house demolished and replaced by a castle in Tudor style, whose planning was undertaken by architects August Schwendenwein and Johann Romano von Ringe. After his death, Münch-Bellinghausen was buried in a crypt under the chapel, which was later plundered during the Russian occupation.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Schloss_merkenstein01.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: 47.9843, 16.1312