The purpose of the embassy was to obtain from the Byzantine Emperor Anastasius, at that time a man of great age, the recognition of Hormisdas, the ruling Pope, as the supreme religious head of both empires. It was a delicate negotiation, and it demanded a perfectly incorruptible adherence to the interests of Rome. In this respect Ennodius stood pre-eminent as what Mosheim styles an “infatuated adulator of the Roman pontiff,” and as a master of the style then required in a diplomat. He had (in 503) eulogized Pope Symmachus, calling him “one who judged in the place of God” (_vice Dei judicare_) and again (in 507) he had published a panegyric on Theodoric, the Gothic King of Italy, which had all the absurd flattery of that species of composition. To crown these he was the obedient occupant of the see of Pavia. He was therefore just the man to do the work of the relentless and uncompromising Pope. Caelius Hormisdas was a man who never yielded, never forgot, and never relaxed a purpose. Such men, backed by a sufficient power, wring from a reluctant world about all that they have determined to secure. But to the obstinate will of the Pope was opposed the no less obstinate will of the old Emperor—now fully eighty-five years of age—and quite as grim in his methods as any Hormisdas. It was to be a battle of giants and the intermediates might look for little favor. The opportunity for the negotiation itself happened to occur in an unusual way. Vitalianus, commander of the Imperial Byzantine cavalry, had taken arms against the Emperor; had defeated and put to death Cyril, the opposing general, and had then marched to the very gates of Constantinople. The victor was proposing to color his rebellion by a pleasant pretext of helping the orthodox; and the old Emperor, therefore, turned the edge of his own humiliation by agreeing to a correspondence with the Pope. Anastasius began to carry out his share of this unpleasant business by appointing a council to meet at Heraclea, in Thrace, on July 15th, 515, and asking for commissioners to be sent from Rome. The venerable fox knew perfectly well that he had not allowed time enough for the proper instruction of these delegates, nor for them to make the long journey. But Pope Hormisdas appointed them, and they proceeded to the imperial court, utterly indifferent as to the time of the council, and without any apologies for their delay which history deigns to record. They went, indeed, in a very haughty spirit, and did not even commence their expedition before August 12th.