Ivan IV Vasilyevich (/ˈaɪvən/; Russian: Ива́н Васи́льевич, tr. Ivan Vasilyevich; 25 August 1530 – 28 March [O.S. 18 March] 1584), commonly known as Ivan the Terrible (Russian: Ива́н Гро́зный​ (help·info), Ivan Grozny; "Ivan the Formidable" or "Ivan the Fearsome"), was the Grand Prince of Moscow from 1533 to 1547 and the first Tsar of Russia from 1547 to 1584.