Palais Todesco is a Ringstraßenpalais in Vienna, Austria, constructed from 1861 to 1864 on plans by architect Theophil Hansen.
It was built for the aristocratic Todesco family. One of the inhabitants was Baroness Sophie von Todesco, who established a renowned salon for artists and intellectuals.
The palace served as the headquarters of the Austrian People's Party from 1947 to 1995.
Wikipedia https://en.wikipedia.org/wiki/Palais_Todesco
Coordinates 48°12'11.669" N 16°22'13.99" E