<a href="https://de.wikipedia.org/wiki/Schloss_Liebenau" class="extiw" title="de:Schloss Liebenau">Schloss Liebenau</a> in <a href="//commons.wikimedia.org/wiki/Graz" title="Graz">Graz</a>, <a href="//commons.wikimedia.org/wiki/Styria" class="mw-redirect" title="Styria">Styria</a>. That former mansion was turned into a <i>K.u.K. Artillery Cadet School</i> in 1854. At that place, its successor, a public boarding school, still exists today. The baroque gate added in 1765 does not show up on this picture
<bdi><a href="https://en.wikipedia.org/wiki/en:Georg_Matth%C3%A4us_Vischer" class="extiw" title="w:en:Georg Matthäus Vischer"><span title="Austrian cartographer">Georg Matthäus Vischer</span></a>
</bdi>
1681
Topographia Ducatus Stiriae, copper engraving "Schloss Liebenav", 11,5x21,2cm <a rel="nofollow" class="external free" href="http://www.dynexcorp.com/pan/bea.htm">http://www.dynexcorp.com/pan/bea.htm</a>