Patriarch Eutychius of Constantinople

Eutychius (c. 512 – 5 April 582), considered a saint in the Catholic and Orthodox Christian traditions, was the Ecumenical Patriarch of Constantinople from 552 to 565, and from 577 to 582. His feast is kept by the Orthodox Church on 6 April, and he is mentioned in the Catholic Church's "Corpus Juris". His terms of office, occurring during the reign of Emperor Justinian the Great, were marked by controversies with both imperial and papal authority.

Eutychius' career is well documented: a full biography, composed by his chaplain Eustathius of Constantinople, was preserved intact. Eutychius was born at Theium in Phrygia. His father, Alexander, was a general under the famous Byzantine commander Belisarius. Eutychius became a monk at Amasea at the age of 30. As an archimandrite at Constantinople, Eutychius was well respected by Menas. Eventually, on the day Menas died, Eutychius was nominated by Justinian the Great to replace the position Menas had held.

Pope Vigilius was in Constantinople when Eutychius became patriarch. Eutychius sent him the usual announcement of his own appointment and a completely orthodox profession of the then-united Church. At the same time, the Pope urged him to summon and preside over the Church Council summoned to deal with the Three-Chapter Controversy. Vigilius first gave, and then withdrew, his consent to the Council. In spite of the Pope's refusal, the council met on 5 May 553 at Constantinople, and Eutychius shared the first place in the assembly with Apollinarius of Alexandria and Domninus, called Domnus III of Antioch. At the second session, the pope excused himself again on the grounds of ill health. The subscription of Eutychius to the Acts of this synod, which was later recognized as the Fifth General Council and which concluded on 2 June 553, is a summary of the decrees against the Three Chapters.

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