Eastern OrthodoxyEastern Orthodoxy, otherwise known as Eastern Orthodox Christianity or Byzantine Christianity, is one of the three main branches of Chalcedonian Christianity, alongside Roman Catholicism and Protestantism. Like the Pentarchy of the first millennium, the mainstream (or "canonical") Eastern Orthodox Church is organised into autocephalous churches independent from each other. In the 21st century, the number of mainstream autocephalous churches is seventeen; there also exist autocephalous churches unrecognized by those mainstream ones.
Metropolitan bishopIn Christian churches with episcopal polity, the rank of metropolitan bishop, or simply metropolitan (alternative obsolete form: metropolite), pertains to the diocesan bishop or archbishop of a metropolis. Originally, the term referred to the bishop of the chief city of a historical Roman province, whose authority in relation to the other bishops of the province was recognized by the First Council of Nicaea (AD 325). The bishop of the provincial capital, the metropolitan, enjoyed certain rights over other bishops in the province, later called "suffragan bishops".
PatriarchThe highest-ranking bishops in Eastern Orthodoxy, Oriental Orthodoxy, the Catholic Church (above major archbishop and primate), the Hussite Church, Church of the East, and some Independent Catholic Churches are termed patriarchs (and in certain cases also popes – such as the Pope of Rome or Pope of Alexandria, and catholicoi – such as Catholicos Karekin II). The word is derived from Greek πατριάρχης (patriarchēs), meaning "chief or father of a family", a compound of πατριά (patria), meaning "family", and ἄρχειν (archein), meaning "to rule".
Full communionFull communion is a communion or relationship of full agreement among different Christian denominations or Christian individuals that share certain essential principles of Christian theology. Views vary among denominations on exactly what constitutes full communion, but typically when two or more denominations are in full communion it enables services and celebrations, such as the Eucharist, to be shared among congregants or clergy of any of them with the full approval of each.
Ecumenical Patriarchate of ConstantinopleThe Ecumenical Patriarchate of Constantinople (Οἰκουμενικὸν Πατριαρχεῖον Κωνσταντινουπόλεως, ikumeniˈkon patriarˈçion konstandinuˈpoleos; Patriarchatus Oecumenicus Constantinopolitanus; Rum Ortodoks Patrikhanesi, İstanbul Ekümenik Patrikhanesi, "Roman Orthodox Patriarchate, Ecumenical Patriarchate") is one of the fifteen to seventeen autocephalous churches (or "jurisdictions") that together compose the Eastern Orthodox Church. It is headed by the Ecumenical Patriarch of Constantinople.
Serbian Orthodox ChurchThe Serbian Orthodox Church (Srpska pravoslavna crkva) is one of the autocephalous (ecclesiastically independent) Eastern Orthodox Christian churches. The majority of the population in Serbia, Montenegro and the Republika Srpska entity of Bosnia and Herzegovina are members of the Serbian Orthodox Church. It is organized into metropolitanates and eparchies, located primarily in Serbia, Bosnia and Herzegovina, Montenegro, and Croatia. Other congregations are located in the Serb diaspora.
PentarchyPentarchy (from the Greek Πενταρχία, Pentarchía, from πέντε pénte, "five", and ἄρχειν archein, "to rule") is a model of Church organization formulated in the laws of Emperor Justinian I (527-565) of the Roman Empire. In this model, the Christian Church is governed by the heads (patriarchs) of the five major episcopal sees of the Roman Empire: Rome, Constantinople, Alexandria, Antioch, and Jerusalem.
Romanian Orthodox ChurchThe Romanian Orthodox Church (ROC; Biserica Ortodoxă Română, BOR), or Patriarchate of Romania, is an autocephalous Eastern Orthodox church in full communion with other Eastern Orthodox Christian churches, and one of the nine patriarchates in the Eastern Orthodox Church. Since 1925, the church's Primate bears the title of Patriarch. Its jurisdiction covers the territories of Romania and Moldova, with additional dioceses for Romanians living in nearby Serbia and Hungary, as well as for diaspora communities in Central and Western Europe, North America and Oceania.
Primus inter paresPrimus inter pares is a Latin phrase meaning first among equals. It is typically used as an honorary title for someone who is formally equal to other members of their group but is accorded unofficial respect, traditionally owing to their seniority in office. Historically, the princeps senatus of the Roman Senate was such a figure and initially bore only the distinction that he was allowed to speak first during debate. Also, Constantine the Great was given the role of primus inter pares.
Christian denominationA Christian denomination is a distinct religious body within Christianity that comprises all church congregations of the same kind, identifiable by traits such as a name, particular history, organization, leadership, theological doctrine, worship style and, sometimes, a founder. It is a secular and neutral term, generally used to denote any established Christian church. Unlike a cult or sect, a denomination is usually seen as part of the Christian religious mainstream.
