There were those who demanded that the emperor be permitted to approve or reject the candidate before the election took place. As precedents in favor of this they referred to the long list of popes who had been either nominated or appointed by various emperors. The part which the emperor was to have in the election of a pope is not stated in the decree, but section 4 shows plainly that Nicholas and Henry had come to an agreement on that subject, and from other sources we know what its terms were. This agreement was limited to Henry alone, for each of his successors must secure his share in the papal election by demanding it of the pope. This decree seems to justify certain irregularities or peculiarities in the election of Nicholas himself and hence may be said to have an apologetic character. (1) His election took place not in Rome, but in Siena. (2) He was not a member of the church in Rome, but was bishop of Florence. (3) It was chiefly the cardinal bishops who elected him. (4) Since the Tusculan party held Rome it was some time before he could be consecrated and enthroned, but in the meanwhile he exercised papal authority. The cardinal bishops had already acquired certain prerogatives over the other cardinal clergy. They alone, besides the pope, could say mass at the high altar in St. John's in Lateran; they represented the pope during his absence from Rome; they consecrated and enthroned the pope; they assisted the pope in anointing and crowning the emperor; and without their consent the pope could not bestow the pallium upon an archbishop. By this decree they now acquire the new and important right of nominating the pope. But this high prerogative they were not able to retain permanently. From 1050 to 1100 they succeeded in depriving the other cardinal clergy of much of their power and influence. They were the chief advisers of the popes. In accordance with the terms of this decree they elected Alexander II (1061-73) (the election of Gregory VII (1073-85) was somewhat irregular), Victor III (1086-87), and Urban II (1087-99). But the other cardinal clergy were not content to be thus thrust down; they struggled successfully against the growing power of the cardinal bishops and finally regained the right which had once been theirs. The election of Paschal II (1099-1118) was made by all the cardinal clergy, not by the cardinal bishops alone, and afterward the election of a pope was the concern of all the cardinal clergy. The original of this decree is lost and the copy which has come down to us is slightly imperfect, as there are omissions in it. Some one representing the imperial party, not satisfied with the share which it gave the emperor in the papal election, changed it to suit the demands of his party. It is now known that this imperial form of the decree is a forgery.