The Second Council of Constantinople begins.
The Second Council of Constantinople is the fifth of the first seven ecumenical councils recognized by both the Eastern Orthodox Church and the Catholic Church. It is also recognized by the Old Catholics and others. Protestant opinions and recognition of it are varied. Some Protestants, such as Calvinists, recognize the first four councils, whereas Lutherans accept the first six, and most Anglo-Catholics accept all seven. Constantinople II was convoked by the Byzantine Emperor Justinian I under the presidency of Patriarch Eutychius of Constantinople. It was held from 5 May to 2 June 553. Participants were overwhelmingly Eastern bishops—only sixteen Western bishops were present, including nine from Illyricum and seven from Africa, but none from Italy—out of the 152 total.The main work of the council was to confirm the condemnation issued by edict in 551 by the Emperor Justinian against the Three Chapters. These were the Christological writings and ultimately the person of Theodore of Mopsuestia (died 428), certain writings against Cyril of Alexandria's Twelve Anathemas accepted at the Council of Ephesus, written by Theodoret of Cyrrhus (died c. 466), and a letter written against Cyrillianism and the Ephesian Council by Ibas of Edessa (died 457).The purpose of the condemnation was to make plain that the Great Church, which followed a Chalcedonian creed, was firmly opposed to Nestorianism as supported by the Antiochene school which had either assisted Nestorius, the eponymous heresiarch, or had inspired the teaching for which he was anathematized and exiled. The council also condemned the teaching that Mary could not be rightly called the Mother of God (Greek: Theotokos) but only the mother of the man (anthropotokos) or the mother of Christ (Christotokos).Justinian hoped that this would contribute to a reunion between the Chalcedonians and monophysites in the eastern provinces of the Empire. Various attempts at reconciliation between these parties within the Byzantine Empire were made by many emperors over the four centuries following the Council of Ephesus, none of them successful. Some attempts at reconciliation, such as this one, the condemnation of the Three Chapters and the unprecedented posthumous anathematization of Theodore—who had once been widely esteemed as a pillar of orthodoxy—causing further schisms and heresies to arise in the process, such as the aforementioned schism of the Three Chapters and the emergent semi-monophysite compromises of monoenergism and monotheletism. These propositions assert, respectively, that Christ possessed no human energy but only a divine function or principle of operation (purposefully formulated in an equivocal and vague manner, and promulgated between 610 and 622 by the Emperor Heraclius under the advice of Patriarch Sergius I of Constantinople) and that Christ possessed no human will but only a divine will, "will" being understood to mean the desires and appetites in accord with the nature (promulgated in 638 by the same and opposed most notably by Maximus the Confessor).