Henry IV was Holy Roman Emperor (1084–1105), King of Germany (1054–1105), and King of Italy and Burgundy (1056–1105). A Salian ruler, he was the son of Henry III and Agnes of Poitou. After his father's death in 1056, his mother acted as regent, granting lands to secure aristocratic support. Unable to control papal elections, she witnessed the growing assertion of the "liberty of the Church", a principle central to the emerging Gregorian Reform. In 1062, Archbishop Anno II of Cologne kidnapped Henry and governed until he came of age in 1065. November 17, 1050 – August 14, 1106; died at 55. Alive at the same time as Omar Khayyám, Peter Abelard, Anselm of Canterbury, Su Shi, and William the Conqueror. Wiki link