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. Born: 1551 Died: April 23, 1605 In office: February 17, 1598 – April 13, 1605 Wiki link