The Eastern Orthodox Church, officially the Orthodox Catholic Church, is a communion comprising the, up to, seventeen separate autocephalous (self-governing) hierarchical churches that recognise each other as canonical (regular) Eastern Orthodox Christian churches.[1][2][3][4]
Each constituent church is self-governing;[2] its highest-ranking bishop called the primate (a patriarch, a metropolitan or an archbishop) reports to no higher earthly authority. Each regional church is composed of constituent eparchies (or dioceses) ruled by bishops. Some autocephalous churches have given an eparchy or group of eparchies varying degrees of autonomy (limited self-government). Such autonomous churches maintain varying levels of dependence on their mother church, usually defined in a tomos or another document of autonomy. In many cases, autonomous churches are almost completely self-governing, with the mother church retaining only the right to appoint the highest-ranking bishop (often an archbishop or metropolitan) of the autonomous church.[5]
Normal governance is enacted through a synod of bishops within each church.[6]
The Eastern Orthodox Church is decentralised, having no central authority, earthly head or a single bishop in a leadership role. Thus, the Eastern Orthodox use a synodical system canonically, which is significantly different from the hierarchical organisation of the Catholic Church that follows the doctrine of papal supremacy.[6] References to the Ecumenical Patriarch of Constantinople as a sole authoritative leader are an erroneous interpretation of his title “first among equals".[7][8] His title is of honor rather than authority and in fact the Ecumenical Patriarch has no real authority over churches other than the Constantinopolitan.[9] His unique role often sees the Ecumenical Patriarch referred to as the "spiritual leader" of the Eastern Orthodox Church in some sources.[10][11]
The autocephalous churches are normally in full communion with each other, so any priest of any of those churches may lawfully minister to any member of any of them, and no member of any is excluded from any form of worship in any of the others, including the reception of the Eucharist. However, there have been varying instances in the history of the Eastern Orthodox Church where communion has been broken between member churches, particularly over autocephaly issues and ecumenism with the Roman Catholic Church.[12][13][14][15]
In the early Middle Ages, the early Christian church was ruled by five patriarchs as the state church of Rome: the bishops of Rome, Constantinople, Alexandria, Antioch, and Jerusalem, collectively referred to as the Pentarchy. Each patriarch had jurisdiction over bishops in a specified geographic region. This continued until 927, when the Bulgarian Patriarchate became the first newly promoted patriarchate to join the original five.[16]
The Patriarch of Rome was "first in place of honour" among the five patriarchs. Disagreement about the limits of his authority was one of the causes of the Great Schism, conventionally dated to the year 1054, which split the state-recognised Church into the Catholic Church in the West, headed by the Bishop of Rome, and the Orthodox Church, led by the four eastern patriarchs (Constantinople, Jerusalem, Antioch and Alexandria). After the schism, this honorary primacy shifted to the Patriarch of Constantinople, who had previously been accorded second-place rank at the First Council of Constantinople.
In the 5th century, Oriental Orthodoxy separated from Chalcedonian Christianity (and is therefore separate from both the Eastern Orthodox and Catholic Church), well before the 11th century Great Schism. It should not be confused with Eastern Orthodoxy.
Jurisdictions
Canonical territories of the main autocephalous and autonomous Eastern Orthodox jurisdictions as of 2020
Autocephalous Eastern Orthodox churches
Timeline showing the history of the main autocephalous Eastern Orthodox Churches, from an Eastern Orthodox point of view, up to 2022
Ranked in order of seniority, with the year of independence (autocephaly) given in parentheses, where applicable.[17][18] There are a total of 17 autocephalous Eastern Orthodox churches which are recognised at varying levels among the communion of the Eastern Orthodox Church.
Four ancient patriarchates
Ecumenical Patriarchate of Constantinople (independence in 330 AD, elevated to the rank of autocephalous Patriarchate in 381)
Greek Orthodox Patriarchate of Alexandria
Greek Orthodox Patriarchate of Antioch
Greek Orthodox Patriarchate of Jerusalem (independence in 451 AD, elevated to the rank of autocephalous Patriarchate in 451)
Those four ancient Eastern Orthodox Patriarchates are of the five episcopal sees forming the historical Pentarchy, the fifth one being the See of Rome. Those four Eastern Orthodox patriarchates remained in communion with each other after the 1054 schism with Rome. Of note, the title of "Patriarch" was created in 531 by Justinian.[19]
Orthodox Church of the Czech Lands and Slovakia (1951)[lower-alpha 4]
Orthodox Church in America (1970, not recognised by the Ecumenical Patriarchate, but recognised by the Russian Orthodox Church and five other churches)[lower-alpha 5]
The four ancient patriarchates are the most senior, followed by the five junior patriarchates. Autocephalous archbishoprics follow the patriarchates in seniority, with the Church of Cyprus being the only ancient one (AD 431). In the diptychs of the Russian Orthodox Church and some of its daughter churches (e.g., the Orthodox Church in America), the ranking of the five junior patriarchal churches is different. Following the Russian Church in rank is Georgian, followed by Serbian, Romanian, and then Bulgarian Church. The ranking of the archbishoprics is the same.
Autonomous Eastern Orthodox churches
Diagram with the organization of the Eastern Orthodox Church as of 2020
under the Ecumenical Patriarchate of Constantinople
Monastic community of Mount Athos
Greek Orthodox Archdiocese of Italy and Malta
Korean Orthodox Church
Exarchate of the Philippines
American Carpatho-Russian Orthodox Diocese
Ukrainian Orthodox Church of Canada
Ukrainian Orthodox Church of the USA
under the Russian Orthodox Church
Archdiocese of Russian Orthodox churches in Western Europe
under the Romanian Orthodox Church
Ukrainian Orthodox Vicariate Sighetu Marmației
Unrecognised churches
Timeline of the main unrecognised and True Orthodox churches which have come out of the Russian Orthodox Church, until 2021
True Orthodox
True Orthodox Christians are groups of traditionalist Eastern Orthodox churches which have severed communion since the 1920s with the mainstream Eastern Orthodox churches for various reasons, such as calendar reform, the involvement of mainstream Eastern Orthodox in ecumenism, or the refusal to submit to the authority of mainstream Eastern Orthodox Church. The True Orthodox Church in the Soviet Union was also called the Catacomb Church; the True Orthodox in Romania, Bulgaria, Greece and Cyprus are also called Old Calendarists.[24]
These groups refrain from concelebration of the Divine Liturgy with the mainstream Eastern Orthodox, while maintaining that they remain fully within the canonical boundaries of the Church: i.e., professing Eastern Orthodox belief, retaining legitimate apostolic succession, and existing in communities with historical continuity.
Churches that are neither recognised nor fully Eastern Orthodox
The following churches use the term "Orthodox" in their name and carries belief or the traditions of Eastern Orthodox church, but blend beliefs and traditions from other denominations outside of Eastern Orthodoxy:
Evangelical Orthodox Church (blends with Protestant - Evangelical and Charismatic - elements)
Orthodox-Catholic Church of America (blends with Catholic and Oriental Orthodox elements)
Nordic Catholic Church in Italy (originally called the Orthodox Church in Italy, it had ties with the UOC-KP; now associates with the Nordic Catholic Church and the Union of Scranton)
Lusitanian Catholic Orthodox Church (blends with Catholic elements)
Communion of Western Orthodox Churches (blends with Oriental Orthodox elements)
Celtic Orthodox Church
French Orthodox Church
Orthodox Church of the Gauls
See also
Hierarchy of the Catholic Church
Catholic Church by country
List of Lutheran dioceses and archdioceses
Notes
↑ 1.01.11.21.3Autonomy not universally recognised.
↑Due to the 2018 Moscow–Constantinople schism, the Russian Orthodox Church has cut ties with the Ecumenical Patriarchate along with several primates of other Churches on this list. The nature of their current relationship is uncertain
↑ 2.02.1In the E. Orthodox Churches of Greek tradition, the ranks are, from the lowest to the highest, as follows: bishop, metropolitan, archbishop, patriarch. In contrast, in the other E. Orthodox Churches, the ranks are, from the lowest to the highest, as follows: bishop, archbishop, metropolitan, patriarch. Thus, an archbishop from an E. Orthodox Church of the Greek tradition is equivalent to a metropolitan in the other E. Orthodox Churches.
↑The primate of the Polish Orthodox Church is referred to as Archbishop of Warsaw and Metropolitan of All Poland, but the Polish Orthodox Church is officially a Metropolis[23]
↑The primate of the Czech and Slovak Orthodox Church is referred to as Archbishop of Prešov and Slovakia, Metropolitan of the Czech Lands and Slovakia, but the Czech and Slovak Orthodox Church is officially a Metropolis
↑See Orthodox Church in America#Recognition of autocephaly
↑As of 27 May 2022, the UOC-MP has formally declared its full autonomy and independence from the Russian Orthodox Church, but while remains in full communion with the same Church, as well as the Orthodox Churches of Antioch, Jerusalem, Serbia, Bulgaria, Romania, Georgia, Albania, Poland, Czech Lands and Slovakia, and the OCA[citation needed]
↑Was previously an Oriental Orthodox archdiocese by the Indian Orthodox Church and later an independent Oriental Orthodox Church; the Church is currently an autonomous True Orthodox Church under the Avlona Synod since 2016
↑The UOC-KP merged into the Orthodox Church of Ukraine. However, the UOC-KP was re-established after a conflict between Patriarch Filaret and the primate of the OCU Metropolitan Epiphanius
References
↑"Explainer: The 'Holy And Great Council' Of Orthodox Churches" (in en). https://www.rferl.org/a/explainer-orthodox-churches-holy-great-council/27810011.html. "It is -- or should be -- a synod of bishops of all the 14 recognized autocephalous churches of Eastern Orthodox Christianity. Unlike the Catholic Church, which has a single, undisputed leader in the pope, the Orthodox Christians are divided into self-governing provinces, each with its own leadership. The council was meant to be the first meeting of all Orthodox leaders since 787, when the last of the seven ecumenical councils recognized by the heads of both the Eastern and Western Christian Church was held in Nicaea (present-day Iznik in northwestern Turkey)."
↑"Autocephalous / Autonomous - Questions & Answers". https://www.oca.org/questions/autocephaly/autocephalous-autonomous. "An “autocephalous” Church is completely self-governing. It elects its own primate and has the right to consecrate its own Holy Chrism, among other prerogatives unique to autocephalous Churches. [The term “autocephalous” literally means “self-heading.”] An “autonomous” Church is self-governing to a certain degree in its internal matters, but its head is appointed or confirmed by the autocephalous Church, which nurtures it. An autonomous Church also receives its Holy Chrism from its “Mother Church.”"
↑"His All-Holiness Ecumenical Patriarch Bartholomew" (in en). https://president.nd.edu/ecumenical-patriarch/. "Ecumenical Patriarch Bartholomew, the spiritual leader of 300 million Orthodox Christians worldwide, was elected the 270th archbishop of Constantinople and ecumenical patriarch in October 1991. His tenure has been highlighted by ecumenical and interreligious dialogue — including formal visits with Roman Catholic, Orthodox, other Christian, Jewish and Muslim leaders — as well as efforts to promote religious freedom, human rights and protection of the environment."