Sergius was succeeded by John VI (701), in whose pontificate Campania was invaded by the Lombards, under Gisulf, duke of Benevento. His successor, John VII (705), is noted only for having been guilty of the weakness of returning the canons of the council
Notwithstanding the want of positive evidence as to the express object of Constantine’s journey, it is usually believed to have been occasioned by the emperor’s unceasing anxiety to secure the co-operation of the Roman hierarchy in the establishment of the late decrees. It is also argued, and with seeming reason, that his attendance on the imperial commands is a proof of the still unavoidable subjection which the pontiffs had to endure; while his failing to oppose the canons so objectionable to his church affords a similar proof of his weakness and his fears.
[715-741 A.D.]
Gregory II, by whom he was succeeded (715), pursued a bolder line of conduct.[89] The part which he took in opposition to Leo the Isaurian has been already stated; and his determined attack on the Lombards, who made themselves masters of one of the Neapolitan fortresses, indicated the spirit which, in later times, placed Christian prelates at the head of mail-clad armies. Gregory was in all respects the firm defender and zealous advocate of papal authority. At one moment engaged in open hostilities with the emperor, he was at another employed in directing the labours of missionaries and founding monasteries. Germany, at his direction, was traversed by the ardent and pious Boniface; and in Italy the rule of St. Benedict became, under his patronage, the universal canon of monastic institutions.
The pontificate of Gregory II lasted sixteen years, and he was succeeded by a priest of the same name, whom the people elected by some sudden impulse, while engaged in the obsequies of the former. Gregory III (731-741) carried the principles which had actuated his predecessor to a far greater extent. Unable to withdraw the emperor Leo, either by persuasion or threats, from the vigorous persecution of iconoclasm, he proceeded to the daring measure of excommunicating the sovereign, and then made known to the celebrated Charles Martel his readiness to proclaim him consul of Rome, on condition that he would enable him to support his separation from the dominion of the empire. Leo resented the conduct of the pontiff, by depriving him of part of his revenues and rejecting his legates. But the step which Gregory had taken led directly to the establishment of the papacy on the basis of temporal power and grandeur. A new career, new motives to exertion, were opened to the politicians of the church; and it was no longer with rival prelates the bishops of Rome were to contend, but with states and princes. The prizes for which they were henceforth to strive were to be tributary crowns and sceptres—the triumphs they were to celebrate, not those of truth over heresy, but of arbitrary superstition over the free-will, the natural sentiments, and the evangelical knowledge of Christian nations.
That reign of terror known as the struggle of the iconoclasts has been alluded to already in the history of the Byzantine Empire. It may also be summed up here with its consequences.
DRAPER ON THE ORIGIN OF ICONOCLASM