Irenaeus was a Greek bishop noted for his role in guiding and expanding Christian communities in the southern regions of present-day France and, more widely, for the development of Christian theology by combating heterodox or Gnostic interpretations of Scripture as heresy and defining proto-orthodoxy. Originating from Smyrna, he had seen and heard the preaching of Polycarp, who in turn was said to have heard John the Evangelist, and thus was the last-known living connection with the Apostles.
Pope Linus was the bishop of Rome from c. AD 67 to his death. He is generally regarded as the second Bishop of Rome, after St. Peter. As with all the early popes, he was canonized.
Pope Marcellus I was the bishop of Rome from May or June 308 to his death. He succeeded Marcellinus after a considerable interval. Under Maxentius, he was banished from Rome in 309, on account of the tumult caused by the severity of the penances he had imposed on Christians who had lapsed under the recent persecution. He died the same year, being succeeded by Eusebius. His relics are under the altar of San Marcello al Corso in Rome. Since 1969 his feast day, traditionally kept on 16 January by the Catholic Church, is left to local calendars and is no longer inscribed in the General Roman Calendar.
Pope Miltiades, also known as Melchiades the African, was the bishop of Rome from 311 to his death on 10 or 11 January 314. It was during his pontificate that Emperor Constantine the Great issued the Edict of Milan (313), giving Christianity legal status within the Roman Empire. The pope also received the palace of Empress Fausta where the Lateran Palace, the papal seat and residence of the papal administration, would be built. At the Lateran Council, during the schism with the Church of Carthage, Miltiades condemned the rebaptism of apostatised bishops and priests, a teaching of Donatus Magnus.
Pope Felix I was the bishop of Rome from 5 January 269 to his death on 30 December 274.
Polycarp was a Christian bishop of Smyrna. According to the Martyrdom of Polycarp, he died a martyr, bound and burned at the stake, then stabbed when the fire failed to consume his body. Polycarp is regarded as a saint and Church Father in the Catholic Church, Eastern Orthodox Church, Oriental Orthodox Churches, Lutheranism, and Anglicanism.
Pope Hilarius was the bishop of Rome from AD 461 to 468.
Pope Telesphorus was the bishop of Rome from c. 126 to his death c. 137, during the reigns of Roman Emperors Hadrian and Antoninus Pius. He was of Greek ancestry and born in Terranova da Sibari, Calabria, Italy.
Pope Anicetus was the bishop of Rome from c. 157 to his death in April 168. According to the Annuario Pontificio, the start of his papacy may have been 153. Anicetus actively opposed Gnosticism and Marcionism. He welcomed Polycarp of Smyrna to Rome to discuss the Easter controversy.
Pope Anacletus, also known as Cletus, was the bishop of Rome, following Peter, and Linus. Anacletus served between c. AD 79 and his death, c. AD 92. Cletus was a Roman who, during his tenure as pope, ordained a number of priests and is traditionally credited with setting up about twenty-five parishes in Rome. Although the precise dates of his pontificate are uncertain, he "...died a martyr, perhaps about 91". Cletus is mentioned in the Roman Canon of the mass; his feast day is April 26.
Clement of Rome, also known as Pope Clement I, was the bishop of Rome in the late first century AD. He is listed by Irenaeus and Tertullian as the bishop of Rome, holding office from 88 AD to his death in 99 AD. He is considered to be the first Apostolic Father of the Church, one of the three chief ones together with Polycarp and Ignatius of Antioch.
Pope Hyginus was the bishop of Rome from c. 138 to his death in c. 142. Tradition holds that during his papacy he determined the various prerogatives of the clergy and defined the grades of the ecclesiastical hierarchy.
Pope John I was the bishop of Rome from 13 August 523 to his death. He was a native of Siena, in Italy. He was sent on a diplomatic mission to Constantinople by the Ostrogoth King Theoderic to negotiate better treatment for Arians. Although John was relatively successful, upon his return to Ravenna, Theoderic had him imprisoned for allegedly conspiring with Constantinople. The frail pope died of neglect and ill-treatment.
Melito of Sardis was the bishop of Sardis near Smyrna in western Anatolia, and who held a foremost place among the early Christian bishops in Asia due to his personal influence and his literary works, most of which have been lost. What has been recovered, however, has provided a great insight into Christianity during the second century. Jerome, speaking of the Old Testament canon established by Melito, quotes Tertullian to the effect that he was esteemed as a prophet by many of the faithful. This work by Tertullian has been lost, but Jerome quotes sections regarding Melito for the high regard in which he was held at that time. Melito is remembered for his work on developing the first Old Testament Canon. Though it cannot be determined what date he was elevated to the episcopacy, it is probable that he was bishop during the controversy that arose at Laodicea in regard to the observance of Easter, a controversy that lead to his writing his most famous work, an Apology for Christianity to Marcus Aurelius. Little is known of his life outside the works which were quoted or had been read by Clement of Alexandria, Origen, and Eusebius.
An apostolic see is an episcopal see whose foundation is attributed to one or more of the apostles of Jesus or to one of their close associates. In Catholicism, the phrase "The Apostolic See" when capitalized refers specifically to the See of Rome.
Quartodecimanism is the name given to the practice of celebrating the death of Christ on the day of Passover, the 14th of Nisan according to biblical dating, on whatever day of the week it occurs. The Quartodeciman controversy in the Church was the question of whether to celebrate Easter on Sunday, or on Passover.
Polycrates of Ephesus was an Early Christian bishop at Ephesus. Polycrates convened a synod to establish Quartodecimanism as the official position on Easter. His letter was written between 186-195 AD.
The East–West Schism that occurred in 1054 represents one of the most significant events in the history of Christianity. It includes various events and processes that led to the schism and also those events and processes that occurred as a result of the schism. Eastern and Western Christians had a history of differences and disagreements, some dating back to the period of Early Christianity. At the very root of what later became the Great Schism were several questions of pneumatology and ecclesiology. The most important theological difference occurred over various questions regarding the procession of the Holy Spirit, and the use of the filioque clause in the Nicene Creed. One of the main ecclesiological issues was the question of papal supremacy. Other points of difference were related to various liturgical, ritual, and disciplinary customs and practices. Some political and cultural processes also contributed to the breakout of the schism.
Saint Thraseas was a martyr under the reign of Emperor Marcus Aurelius. Prior to his death he served as Bishop of Eumenia, Phrygia, in Asia Minor.
Papacy in early Christianity was the period in papal history between 30 AD, when according to Catholic doctrine, Saint Peter effectively assumed his pastoral role as the Visible Head of the Church, until the pontificate of Miltiades, in 313, when Peace in the Church began.
