Euthymius II ( el, Εὐθύμιος Β΄), (? – 29 March 1416) was

Patriarch of Constantinople The ecumenical patriarch ( el, Οἰκουμενικός Πατριάρχης, translit=Oikoumenikós Patriárchēs) is the archbishop of Constantinople (Istanbul), New Rome and '' primus inter pares'' (first among equals) among the heads of th ...

in 1410–16. He became a monk at a young age and was soon after ordained a priest. He distinguished himself for his theological and rhetorical abilities, which he employed in defence of

Palamism Palamism or the Palamite theology comprises the teachings of Gregory Palamas (c. 1296–1359), whose writings defended the Eastern Orthodox practice of Hesychasm against the attack of Barlaam. Followers of Palamas are sometimes referred to as ...

and against the Union of the

Eastern Orthodox Church The Eastern Orthodox Church, also called the Orthodox Church, is the second-largest Christian church, with approximately 220 million baptized members. It operates as a communion of autocephalous churches, each governed by its bishops via ...

with the

Roman Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...

, for which he was accorded the honorific appellation "Doctor of the Church". Despite being a fervent anti-unionist, he was sent by the

Byzantine emperor This is a list of the Byzantine emperors from the foundation of Constantinople in 330 AD, which marks the conventional start of the Eastern Roman Empire, to its fall to the Ottoman Empire in 1453 AD. Only the emperors who were recognized as le ...

Manuel II Palaiologos Manuel II Palaiologos or Palaeologus ( gr, Μανουὴλ Παλαιολόγος, Manouēl Palaiológos; 27 June 1350 – 21 July 1425) was Byzantine emperor from 1391 to 1425. Shortly before his death he was tonsured a monk and received the na ...

(reigned 1391–1425) to participate in the discussions for a prospective union with

Pope Urban VI Pope Urban VI ( la, Urbanus VI; it, Urbano VI; c. 1318 – 15 October 1389), born Bartolomeo Prignano (), was head of the Catholic Church from 8 April 1378 to his death in October 1389. He was the most recent pope to be elected from outside the ...

(1378–89). The mission achieved some success, but with no firm commitments on either side, and on his return to

Constantinople la, Constantinopolis ota, قسطنطينيه , alternate_name = Byzantion (earlier Greek name), Nova Roma ("New Rome"), Miklagard/Miklagarth (Old Norse), Tsargrad ( Slavic), Qustantiniya (Arabic), Basileuousa ("Queen of Cities"), Megalopolis (" ...

he was promoted to

archimandrite The title archimandrite ( gr, ἀρχιμανδρίτης, archimandritēs), used in Eastern Christianity, originally referred to a superior abbot (''hegumenos'', gr, ἡγούμενος, present participle of the verb meaning "to lead") who ...

and became abbot of the prestigious

Stoudios Monastery The Monastery of Stoudios, more fully Monastery of Saint John the Forerunner "at Stoudios" ( grc-gre, Μονή του Αγίου Ιωάννη του Προδρόμου εν τοις Στουδίου, Monē tou Hagiou Iōannē tou Prodromou en to ...

. Eventually Euthymius advanced to the post of ''

protosynkellos A protosyncellus or protosynkellos ( el, πρωτοσύγκελλος) is the principal deputy of the bishop of an eparchy for the exercise of administrative authority in an Eastern Orthodox or Eastern Catholic church. The equivalent position in t ...

'', after which he became

. During his tenure, he endeavoured to remove the Church from imperial control and act autonomously. Of his writings, only a philosophical treatise "On being and not being" and two letters survive. Euthymius II died on 29 March 1416.

References

{{DEFAULTSORT:Euthymius 02 1340s births 1416 deaths 14th-century Byzantine monks 15th-century patriarchs of Constantinople 15th-century Byzantine writers Byzantine theologians Archimandrites Abbots of the Stoudios Monastery 14th-century Eastern Orthodox theologians