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Russian, Felix Yusupov was born into an aristocratic Russian family in Saint Petersburg. He is notable for his role in the assassination of Grigori Rasputin, a Russian mystic and advisor to Tsar Nicholas II. Yusupov's lineage can be traced back to two influential houses, the Yusupov and the Romanov families, making him a member of Russian high society during the waning days of the Russian Empire.