270 A BRIEF SURVEY OF HUMAN HISTORY The king therefore naturally thought that the cloak of clericalism could not give immunity from temporal obli- gations. Nay, fn the heat of rivalry, he even claimed appoint- ing authority, from the bishop to the 'Pope himself. Thus the right of "investiture" became the crux of the quarrel. Were the Church officials to be invested with authority by the Pope or the Emperor ? The Pope rebutted the claims of the Emperor by attempting to appoint the person of his own choice to the imperial office. The dispute soon degene- rated into a series of unseemly attacks and counter-attacks by both parties. Each tried to win over to itself the alle- giance of the adherents of the other party. Gregory declared Henry excommunicated and deposed ; Henry got the German clergy to deny the authority of Gregory. Rival Popes and Emperors were sought to be set up. On one occasion Henry in a penitent mood humiliated himself before the Pope at Canossa and admitted himself in the wrong. But the recon- ciliation was only temporary. Tempers again flared up, and finally Henry besieged Gregory in his very palace, and the greatest of the medieval Popes died with the words " I have loved justice and hated- iniquity, therefore I die in •exile" on his lips. This was only the climax and not the end of the struggle. However, a workable compromise was reached under Henry V (1106-25) and Pope Paschal II. By the Concordat of Worms (1122) the controversy over investitures in Germany -was settled. The Emperor renounced his claim to invest the clergy with the religious emblems of the ring and the crosier, and promised not to interfere with Church elections. But the elections were to be held- in the Emperor's presence and the bishop or abbot elected was to hold the fiefs and administrative powers under the Emperor, which was sym- bolised by a touch of the sceptre.