Ecclesiastical courtAn ecclesiastical court, also called court Christian or court spiritual, is any of certain courts having jurisdiction mainly in spiritual or religious matters. In the Middle Ages, these courts had much wider powers in many areas of Europe than before the development of nation states. They were experts in interpreting canon law, a basis of which was the Corpus Juris Civilis of Justinian, which is considered the source of the civil law legal tradition.
Apostolic successionApostolic succession is the method whereby the ministry of the Christian Church is considered by some Christian denominations to be derived from the apostles by a continuous succession, which has usually been associated with a claim that the succession is through a series of bishops. Those of the Anglican, Church of the East, Eastern Orthodox, Hussite, Moravian, Old Catholic, Oriental Orthodox, Catholic and Scandinavian Lutheran traditions maintain that "a bishop cannot have regular or valid orders unless he has been consecrated in this apostolic succession".
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".
ApostasyApostasy (əˈpɒstəsi; ἀποστασία , 'a defection or revolt') is the formal disaffiliation from, abandonment of, or renunciation of a religion by a person. It can also be defined within the broader context of embracing an opinion that is contrary to one's previous religious beliefs. One who undertakes apostasy is known as an apostate. Undertaking apostasy is called apostatizing (or apostasizing – also spelled apostacizing).
BishopA bishop is an ordained member of the clergy who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance of dioceses. The role or office of bishop is called episcopacy. Organizationally, several Christian denominations utilize ecclesiastical structures that call for the position of bishops, while other denominations have dispensed with this office, seeing it as a symbol of power. Bishops have also exercised political authority.
Holy SeeThe Holy See (Sancta Sedes, ˈsaŋkta ˈsedes; Santa Sede ˈsanta ˈsɛːde), also called the See of Rome, Petrine See, Apostolic See, and Government of Vatican City, is the jurisdiction of the Pope in his role as the bishop of Rome and sovereign of Vatican City. It includes the apostolic episcopal see of the Diocese of Rome, which has ecclesiastical jurisdiction over the Catholic Church, and sovereignty and governance over the city-state known as Vatican City.
