His friendly correspondence with Cyril of Alexandria was resumed in the year 444, and, in the adjustment of their differences, Leo made concessions. In the same year, Cyril died, and his successor Dioscorus was addressed with the same recognition of equality. There are differences in points of discipline, but Leo is content to say[59]: "Since the blessed Peter was made chief of the apostles by the Lord, and the Roman Church abides by his instructions, it is impossible to suppose that his holy disciple Mark, who first ruled the Church of Alexandria, gave it other regulations." Five years later, however, Leo received from the East an appeal against the Bishop of Constantinople, and a notable conflict began. In the unending struggle in the East over the nature of Christ, the monks, a fierce and turbulent rabble living on the fringes of the great cities, had been the most effective champions of orthodoxy, and great was their excitement when the archimandrite (or abbot) of one of their large monasteries outside Constantinople was accused of heresy. The heresy is really diagnosed as such by the proper authorities, but it is not superfluous for the historian to observe that the monk Eutyches was godson of the most powerful eunuch at the court, and this eunuch was detested by the virtuous Empress Pulcheria and by Flavian, the Bishop of Constantinople. Eutyches was condemned by a synod in 448, and he appealed to Leo. I have observed that the appealer--especially from a province where Roman authority was disputed--always had a gracious hearing at the Lateran. In February, 449, Leo wrote to Flavian[60] to express his surprise that he had not sent a report of the proceedings to Rome and that he had disregarded the appeal which the monk had made from his sentence to Rome. However, since appeal _has_ been made to Leo, "we want to know the reasons of your action, and we desire a full account to be communicated to us." Flavian's reply[61] curtly described the heresy and trusted that Leo would see the justice of the sentence.