To be privately owned
Palais Erzherzog Anton

The Palais Erzherzog Anton is a historic residence in Baden, Lower Austria.
History+
Archduke Anton acquired the property at Antonsgasse 12 in 1810. In the same year, a separate dwelling was created at the rear of the estate, detached from a neighboring house. Following a city fire in July 1812, only remnants of the Archduke's house remained. Consequently, Archduke Anton purchased the equally burnt-down adjacent house at Antonsgasse 10 that same year, and in 1815, the property of Count Thörheim.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Baden_9285.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: 48.0093, 16.2387