Saint Gregory VII

Pope Gregory VII, born Hildebrand of Sovana (c. 1015 – 25 May 1085), was head of the Catholic Church and ruler of the Papal States from 22 April 1073 until his death in 1085. He is venerated as a saint in the Catholic Church, known for his role in the Gregorian Reform and his dispute with Emperor Henry IV over the Investiture Controversy....