Dreaded Czar is a term used to refer to IVAN IV of Russia, who was also known as IVAN the Terrible. He was the Grand Prince of Moscow from 1533 to 1547 and the first Tsar of All Russia from 1547 until his death in 1584. He is remembered for his brutal reign and his expansion of the Russian Empire. He is also remembered for his harsh punishments and his use of terror to maintain control over his subjects.