Fyodor I Ivanovich or Feodor I Ioannovich, nicknamed the Blessed, was Tsar of all Russia from 1584 until his death in 1598.
Feodor's mother died when he was three, and he grew up in the shadow of his father, Ivan the Terrible. Wikipedia
Born: May 31, 1557, Moscow, Russia
Died: January 17, 1598 (age 40 years), Moscow, Russia
Children: Tsarevna Feodosia Feodorovna of Russia
Parents: Ivan the Terrible and Anastasia Romanovna
Spouse: Irina Godunova (m. 1580–1598)
Grandparents: Vasili III of Russia, Elena Glinskaya, Roman Yurievich Zakharyin, and more
Siblings: Dmitry of Uglich