Holy Roman Emperor Henry V reigned from 1111 to 1125. He was the son of Henry IV and became emperor after a tumultuous period marked by conflicts with the papacy. His reign was characterized by efforts to strengthen imperial authority and manage relations with the church. Henry V is best known for his involvement in the Investiture Controversy, a power struggle between the monarchy and the papacy over the appointment of bishops. He sought to resolve these tensions through diplomacy and compromise, ultimately leading to a more stable relationship between the empire and the church during his rule.