Palais Auersperg, originally called Palais Rosenkavalier, is a Baroque palace at Auerspergstraße 1 in the Josefstadt or eighth district of Vienna, Austria.
Wikipedia https://en.wikipedia.org/wiki/Palais_Auersperg
Address 1 Auerspergstraße, Wien 1080, Austria
Coordinates 48°12'26.286" N 16°21'18.751" E