Nicky Yusupov
From Tardis Wiki, the free Doctor Who reference
Nicky Yusupov was the brother of Felix Yusupov. In Russia, on 4 July 1908, Nicky Yusupov was killed in a duel by Baron Maneufel. At the heart of their dispute was the love of a woman, Countess Marina Heyden. (PROSE: The Wages of Sin)