Alexei Nikolaevich, Tsarevich of Russia was the heir apparent to the Russian Empire's throne. The only son of Empress Alexandra Feodorovna and Emperor Nicholas II, Alexei was born with haemophilia, which was treated by the popular faith healer Grigori Rasputin. In 1918, Alexei and his family members were executed brutally by Communist revolutionaries.
Grigory Potemkin was a Russian statesman, military leader, and nobleman. A favorite of Catherine the Great, Grigory Potemkin was appointed governor-general of Russia's southern provinces in 1775. An influential personality, Potemkin supervised the construction of several important edifices, such as the Tauride Palace. He is also credited with founding the towns of Ekaterinoslav, Sevastopol, Kherson, and Nikolayev.
Felix Yusupov was a Russian prince and count from the Yusupov family. He participated in the assassination of the controversial mystic Grigori Rasputin. He was born into a wealthy family and led a flamboyant life. He was happily married to Princess Irina of Russia, the niece of Tsar Nicholas II, for more than 50 years.