31st July 1891
Prince Nikolai Borisovich Yusupov was a Russian nobleman and art collector of the house of Yusupov. He was the eldest son of Prince Boris Grigorievich Yusupov (1695-1759). He served as a senator (from 1788), diplomat (from 1783 to 1789), Actual Civil Councillor (from 1796), Minister of State Properties (1800–16), a member of the Council of State (from 1823) and Director of Imperial Theatres (1791-1796) under a series of sovereigns, including Catherine the Great, Paul I and Alexander I. He later also served as director of the Hermitage (in 1797), the Kremlin Armoury (date unknown) and the state porcelain and glass factories (c.1792).