Polycarp (69-155) 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.
Saint Clement of Rome (30-100) is listed by Irenaeus and Tertullian as the fourth bishop of Rome. He is considered to be the first Apostolic Father of the Church.
Saint Basil the Great (330-379). He was an influential theologian who supported the Nicene Creed and opposed the heresies of the early Christian church, fighting against both Arianism and the followers of Apollinaris of Laodicea.
Athanasius I of Alexandria (296-373) was the 20th bishop of Alexandria. Athanasius was a Christian theologian, a Church Father, the chief defender of Trinitarianism against Arianism.
Saint Gregory the Great (540-604) was the bishop of Rome from 3 September 590 to his death. He is known for instigating the first recorded large-scale mission from Rome, the Gregorian Mission.
Irenaeus (120-202) was bishop of Lugdunum in Gaul, which is now Lyons, France. His writings were formative in the early development of Christian theology. He was a disciple of Polycarp, who himself was a disciple of the Apostle John.
The church fathers. Saint Basil the Great (329 - 379), was the bishop of Caesarea Mazaca in Cappadocia, Asia Minor. He was an influential theologian who supported the Nicene Creed and opposed the heresies of the early Christian church.
John Chrysostom (349-407) was the archbishop of Constantinople known for his eloquence in preaching and public speaking, his denunciation of abuse of authority by both ecclesiastical and political leaders, and his ascetic sensibilities.
Ignatius of Antioch (30-110) was an early Christian writer and Patriarch of Antioch. His letters also serve as an example of early Christian theology.
The church fathers. Gregory of Nazianzus (329 - 390) also known as Gregory the Theologian or Gregory Nazianzen, was a 4th-century Archbishop of Constantinople, and theologian. He is widely considered the most accomplished rhetorical stylist
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Gregory of Nyssa (335-395) was bishop of Nyssa from 372 to 376 and from 378 until his death. Gregory, his elder brother Basil of Caesarea, and their friend Gregory of Nazianzus are collectively known as the Cappadocian Fathers.
Augustine of Hippo (354-430) was a theologian and philosopher. His writings influenced the development of Western philosophy and Western Christianity.
Theophilus (2nd century) was Patriarch of Antioch from 169 until 182. His writings indicate that he was born a pagan, not far from the Tigris and Euphrates, and was led to embrace Christianity by studying the Holy Scriptures.
Athenagoras (133-190) was a Father of the Church, an Ante-Nicene Christian apologist who lived during the second half of the 2nd century of whom little is known for certain, besides that he was Athenian, a philosopher, and a convert to Christianity.
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Ephrem the Syrian (306-373) was a prominent Christian theologian and writer, who is revered as one of the most notable hymnographers of Eastern Christianity.
Clement of Alexandria (150-215) was a Christian theologian and philosopher who taught at the Catechetical School of Alexandria. Among his pupils were Origen and Alexander of Jerusalem.
The church fathers. Athanasius of Alexandria (298 - 373), also called Athanasius the Great. Athanasius was a Christian theologian, a Church Father, the chief defender of Trinitarianism against Arianism, and a noted Egyptian leader of the 4 century
Barnabas (1st century) was according to tradition an early Christian, one of the prominent Christian disciples in Jerusalem. According to Acts 4:36, Barnabas was a Cypriot Jew. Named an apostle in Acts 14:14.
Isidore of Seville (560-636) was a Spanish scholar and cleric. For over three decades, he was Archbishop of Seville. He is widely regarded, in the words of 19th-century historian Montalembert, as "the last scholar of the ancient world".
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Gregory of Nazianzus (329-390) was a 4th-century Archbishop of Constantinople, and theologian. As a classically trained orator and philosopher he infused Hellenism into the early church, establishing the paradigm of Byzantine theologians
Macarius of Egypt (300-391) was a Coptic Christian monk and hermit. He is also known as Macarius the Elder or Macarius the Great.
Jerome (342-420) was a Christian priest, confessor, theologian, and historian; he is commonly known as Saint Jerome.
Hippolytus of Rome (170-235) was one of the most important second-third century Christian theologians, whose provenance, identity and corpus remain elusive to scholars and historians.
Origen of Alexandria (184-253) was an early Christian scholar, ascetic, and theologian. He was a prolific writer who wrote roughly 2,000 treatises in multiple branches of theology, including textual criticism, biblical exegesis and hermeneutics.
Antony the Great (251-356) was a Christian monk from Egypt, revered since his death as a saint. For his importance among the Desert Fathers and to all later Christian monasticism, he is also known as the Father of All Monks.
Cyril of Alexandria (378-444) was the Christian patriarch of Alexandria. He distinguished himself by using his position to champion the orthodox faith against Jews and heretics.
The church fathers. Joannes or John Zonaras (1074 - 1130) was a Byzantine chronicler and theologian who lived in Constantinople. Under Emperor Alexios I Komnenos he held the offices of head justice and private secretary to the emperor.
Saint Isaac the Syrian (613-700) was a 7th-century Church of the East Syriac Christian bishop and theologian best remembered for his written works on Christian asceticism.
The church fathers. Titus Flavius Clemens, also known as Clement of Alexandria (150 - 215), was a Christian theologian and philosopher who taught at the Catechetical School of Alexandria. A convert to Christianity, he was an educated man
The church fathers. Saint John of Damascus (675 - 749), was a Byzantine monk and priest. Born and raised in Damascus c. 675 or 676, he died at his monastery, Mar Saba, near Jerusalem on 4 December 749.
The church fathers. Saint John Chrysostom (349 - 407), Archbishop of Constantinople, was an important Early Church Father. He is known for his preaching and public speaking, his denunciation of abuse of authority by both ecclesiastical