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Callistus II,d. 1124, pope (1119–24), named Guy of Burgundy, successor of Gelasius II. The son of count William I of Burgundy, he was archbishop of Vienne during the investitureinvestiture,
in feudalism, ceremony by which an overlord transferred a fief to a vassal or by which, in ecclesiastical law, an elected cleric received the pastoral ring and staff (the symbols of spiritual office) signifying the transfer of the office.
..... Click the link for more information. controversy with Holy Roman Emperor Henry VHenry V,
1081–1125, Holy Roman emperor (1111–25) and German king (1105–25), son of Henry IV. Crowned joint king with his father in 1099, he put himself at the head of the party desiring reconciliation with the pope and, with the approval of Pope Paschal II,
..... Click the link for more information. . When Gelasius died while in exile in France, Calixtus was consecrated pope at Vienne. He immediately summoned a large council at Reims (1119) that proceeded to anathematize the emperor and the antipope that Henry had installed (1118), Gregory VIII. Public reaction sided with the pope and the antipope was imprisoned. Henry thereupon agreed to sign (1122) the famous Concordat (see Worms, Concordat ofWorms, Concordat of,
1122, agreement reached by Pope Calixtus II and Holy Roman Emperor Henry V to put an end to the struggle over investiture. By its terms the emperor guaranteed free election of bishops and abbots and renounced the right to invest them with ring and staff, the
..... Click the link for more information. ), a compromise that recognized the rights of the church in selecting its leadership. Thus was the investiture controversy ended and the reform program of Gregory VII realized. Calixtus then called to Rome (1123) a great council in Western Europe (see Lateran Council, FirstLateran Council, First,
1123, 9th ecumenical council of the Roman Catholic Church, summoned by Pope Calixtus II to signal the end of the investiture controversy by confirming the Concordat of Worms (1122).
..... Click the link for more information. ) to ratify the achievements of Pope Gregory VII. He was succeeded by Honorius II.
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