3. Nikolai Alexandrovich Romanov (Wealth: $300B)
Media 2015-12-19 at 2.47.21 PM Also referred to as Tsar Nicholas II, Nikolai Alexandrovich Romanov is the last emperor of Russia. During his rule, Tsar Nicholas II was believed to amass $300B worth of wealth. He and his family were executed in 1918 during the Russian Revolution.