Dmitry Ivanovich was the eldest son of Ivan the Terrible, the Tsar of all Russia, and as such the first Tsarevich. He died in infancy. Wikipedia
Born: October 11, 1552, Moscow, Russia
Died: June 1553 (age 8 months)
Parents: Ivan the Terrible and Anastasia Romanovna
Uncle: Yuri of Uglich
Siblings: Dmitry of Uglich
Great-grandparents: Ivan III of Russia, Sophia Palaiologina, Ana Jakšić, and more
Grandparents: Vasili III of Russia, Elena Glinskaya, Roman Yurievich Zakharyin, and more