Felix Yusupov
Prince Felix Felixovich Yusupov, Count SumarokovElston was a Russian aristocrat, a prince and count, best known for participating in the assassination of Grigori Rasputin.
Felix Yusupov was born in the Moika Palace in Saint Petersburg, capital of the Russian Empire. His father was Count Felix Felixovich SumarokovElston, the son of Count Felix Nikolaievich SumarokovElston. Zinaida Yusupova, his mother, being the last of the Yusupov line, was of Crimean Tatars origin and very wealthy. The Yusupov family, richer than any of the Romanovs, acquired their wealth generations earlier. It included four palaces in Petrograd , three palaces in Moscow,estates in different parts of Russia , coal and ironore mines, plants and factories, flour mills and oil fields on the Caspian Sea.
Source: Wikipedia