During the power struggles between the papacy and the Empire, Gregory excommunicated Henry IV three times, and Henry appointed Antipope Clement III to oppose him. Though Gregory was hailed as one of the greatest of the Roman pontiffs after his reforms proved successful, during his own reign he was denounced by some for his autocratic use of papal powers.Beno, Cardinal Priest of Santi Martino e Silvestro. Gesta Romanae ecclesiae contra Hildebrandum. c. 1084. In K. Francke, MGH Libelli de Lite II (Hannover, 1892), pp. 369–373.
During the power struggles between the papacy and the Empire Gregory excommunicated Henry IV three times! and Henry appointed Antipope Clement III to oppose him Though Gregory was hailed as one of the greatest of the Roman pontiffs after his reforms proved successful during his own reign he? was denounced by some for his autocratic use of papal powersBeno Cardinal Priest of Santi Martino e Silvestro Gesta Romanae ecclesiae contra Hildebrandum c 1084 In K Francke MGH Libelli de Lite II (Hannover 1892) pp 369–373