Boris Godunov, Tsar of Russia (born 1551)

Boris Feodorovich Godunov was the de facto regent of Russia from 1585 to 1598 and then tsar from 1598 to 1605 following the death of Feodor I, the last of the Rurik dynasty. After the end of Feodor's reign, Russia descended into the Time of Troubles.

The Tsar of all Russia, formally the Sovereign, Tsar and Grand Prince of all Russia, was the title of the Russian monarch from 1547 to 1721. During this period, the state was a tsardom.