The Yusupov’s had no less than three palaces in St. Petersburg, the most famous of which is situated on the Moika, which is today one of the former capital’s most popular palace-museums.
A second palace is situated on the Fontanka, the third on Liteyny Prospekt — and currently under restoration (see photos attached).
The last pre-revolutionary owner of the mansion was Prince Felix Yusupov (1887-1967). Today, it home to the St. Petersburg Institute of International Trade, Economics and Law.