ST. AMBROSE OF MILAN

Born around 338, died 397. Bishop of Milan, Italy. One of the four original Doctors of the Church. Originally a government official, he became bishop in a most extraordinary way. While he was trying to keep the peace

e a kinder bishop than they otherwise would likely get.) He resisted strongly but eventually gave in and was baptized and ordained bishop. Later, he assisted in the conversion of St. Augustine, to whom he gave the famous advice now paraphrased as -qt When in Rome, do as the Romans do. qt-

ST. ANTHONY OF EGYPT

Born around 250 at Herakleopolis Magna, died 356. A layman who lived in a variety of places in Egypt. Though hailed as -qt the Father of Monasticism, qt- he was not the first monk, but he was one of the first (if not the first) ascetics known to retire to the desert. A biography of him by St. Athanasius of Alexandria helped spread his style of monasticism.

ST. ATHANASIUS OF ALEXANDRIA

Born around 295, died 373. A Doctor of the Church. As a deacon he accompanied St. Alexander of Alexandria to the Council of Nicaea I. He succeeded Alexander as patriarch of Alexandria and was a tireless defender of Trinitarianism and foe of the Arians. His time as bishop was stormy, and he was expelled from his see five times but regained it each time.

ST. AUGUSTINE OF HIPPO

Born 354, died 430. One of the four original Doctors of the Church. Of Berber descent, he was born to a pagan father (Patricius) and Christian mother (St. Monica), in Thagaste (modern Souk Ahras, Algeria). He spent some time as a Manichean before becoming a Christian. He was baptized by St. Ambrose of Milan. Before becoming Christian, St. Augustine fathered a son (Adeodatus) by a concubine. After baptism, he became bishop of Hippo Regius, Numidia (now Annaba, Algeria). The most prolific of the Church Fathers, and one of the most important theologians in history.

CONSTANTINE I

Born around 272, died 337. The first Christian emperor—an office he shared with Licinius from 306 until 324, when he became sole emperor. His conversion was prompted by a private revelation in which he was told to conquer in the sign of the cross. He moved the capital of the empire to Byzantium, which was rebuilt as Constantinople (now Istanbul, Turkey). In 313 he and his co-emperor issued the Edict of Milan, which proclaimed religious toleration. He did not, however, make Christianity the official religion of the Roman Empire. In 325 he convoked the Council of Nicaea I to deal with the Arian crisis. Though the council endorsed Trinitarianism, it did not stop the controversy. Constantine was eventually baptized by the Arian bishop of Nicomedia, the city in which he lay dying. Sometimes called -qt Constantine the Great. qt-

ST. CYPRIAN OF CARTHAGE

Born around 205, died 258. He was bishop of Carthage (now a suburb of Tunis, Tunisia). He presided at the Council of Carthage of 256. He got along well with Pope St. Cornelius I but had a falling out with Pope St. Stephen I over whether baptisms performed by heretics were valid (Cyprian wrongly held that they were not). For a time he had to shepherd his flock while in hiding due to persecution. Eventually he was martyred by beheading.

ST. CYRIL OF ALEXANDRIA

Died 444. A Doctor of the Church. Patriarch of Alexandria, Egypt, Cyril was a harsh man who dealt cruelly with his enemies, including Jews, Novatians, St. John Chrysostom, and Nestorius. A mob of his followers brutally murdered the female pagan philosopher Hypatia, though there is no evidence that they did so at his direction. Despite his flaws, he was an important theologian and papal legate to the Council of Ephesus.

POPE ST. GREGORY I

Reigned from 590 to 604. One of the four original Doctors of the Church. Though born to a wealthy family, he sold his possessions and established monasteries, one of which he dwelled in. He practiced asceticism to the point that he damaged his health. Reluctantly, he was drawn from the monastery into the service of the pope. Eventually, he was elected pope himself, though for a time he sought to avoid the office. He guided the Church during a crucial period of transition between antiquity and the Middle Ages. Commonly referred to as -qt Gregory the Great. qt-

ST. HILARY OF POITIERS

Born around 315, died around 367. A Doctor of the Church. He converted from paganism and, though he was married, he was also elected bishop of Poitiers in what is now France. A strong opponent of the Arians, he is sometimes referred to as -qt the Athanasius of the West. qt- Like St. Athanasius of Alexandria, he was for a time exiled, but he regained his see.

ST. IGNATIUS OF ANTIOCH

Died around 110. He was the third bishop of Antioch (near the current city of Antakya, Turkey). He heard the apostle John. In the reign of the Emperor Trajan, he was taken to Rome and martyred. On the way he wrote six letters to various churches and one to St. Polycarp of Smyrna. These letters are an invaluable resource concerning early Christianity. They also exist in a long form that includes interpolations of the fourth century, and there is an abridgement of them in Syriac.

ST. IRENAEUS OF LYONS

Born around 140, died around 202. Originally from modern Turkey, where he heard St. Polycarp of Smyrna, he ended up becoming the second bishop of Lyons (now Lyon, then called Lugdunum), in what is now France. He intervened in a dispute between Pope St. Victor I and Bishop Polycrates of Ephesus on the date on which Easter should be celebrated. He also wrote against Gnosticism in his masterwork, Against Heresies.

ST. JEROME

Born around 347, died around 419. One of the four original Doctors of the Church. Originally from Dalmatia (located mostly in modern Croatia), he was educated in Rome and traveled extensively. He attended the Council of Rome in 382 and became the secretary of Pope Damasus, who instigated Jerome’s most famous work—the translation of the Bible in Latin known as the Vulgate. This gradually replaced previous Latin translations of Scripture. After the death of Damasus he moved to Bethlehem, where he continued his translation work. Jerome made many enemies as a result of his explosive temper and his ability to hold grudges even after the death of his opponents.

At one point Jerome needed additional priestly help with the monasteries he ran, and to supply the need St. Epiphanius of Salamis ordained Jerome’s own brother—a monk named Paulinian—forcibly and against his will. (At this point Jerome was at odds with his own bishop, John of Jerusalem—a split which Epiphanius fostered.)

To keep Paulinian from objecting, he was first gagged and then ordained a deacon. A Mass was held, with Paulinian serving the deacon’s part. Then he was grabbed, tied up and gagged again, and ordained a priest.

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A word from Marcus Grodi about Jimmy Akin's The Fathers Know Best: Your Essential Guide to the Teachings of the Early Church.

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