Ivan the Terrible is a notorious figure in history for his brutal and often violent rule. This ruler was known for his cruelty towards his enemies and the people who opposed his rule. There are various synonyms used for Ivan the Terrible, such as Ivan IV, the Mad, and the Fearsome. Ivan the Mad was used due to his erratic behaviour and unpredictable nature. The Fearsome was given due to his reputation for ruthlessness and cruelty. Despite the brutality associated with his name, some see him as a symbol of Russian power and influence during his reign. Regardless of how one views Ivan the Terrible; his legacy continues to fascinate and intrigue people to this day.