The Winter Palace of Prince Eugene, also known as the City Palace, is a high-Baroque palace in the Innere Stadt district of Vienna, Austria. Located on a narrow street at Himmelpfortgasse 8, the palace was used as the winter residence of Prince Eugene of Savoy, who spent his summers at the Belvedere. The Winter Palace was designed and constructed by Johann Bernhard Fischer von Erlach from 1695 to 1700, and by Johann Lukas von Hildebrandt from 1702 to 1724 following his predecessor's plans.
The palace was acquired through auction by Empress Maria Theresa for the imperial court in 1738, along with most of the prince's other buildings. In 1752, the palace was converted by Nicolò Pacassi into the seat of various state institutions.
Wikipedia https://en.wikipedia.org/wiki/Winter_Palace_of_Prince_Eugene
Official Website https://www.belvedere.at/
Coordinates 48°12'19.473" N 16°22'22.44" E