Doctors of the Church

Catholic Christians believe that the promise of the Spirit of Truth to guide believers in truth is found in the constant faith of the Church as preserved in the writings of the Doctors of the Church also, equally “faithful people.” The Doctors of the Church are eminent Christian teachers who are proclaimed to be worthy of the title. The Church recognized these faithful people and teachers for their contribution to the belief and understanding of the faith. Doctors of the Church must be canonized a saint, known for their learning, and must be proclaimed such by either the Bishop of Rome or an ecumenical council.

St. Albert the Great (Bio)

Personal

Bishop of Ratisbon, 1260-1293 
Introduced Greek and Arabic science and philosophy into the medieval world 
Dominican, Order of Preachers 
Teacher of Thomas Aquinas 
Named in 1932 by Pius XI

Place and dates

1206-1280

Writings

Summa Theologiae (1270): attempted to reconcile Aristotelianism and Christianity 
Sentences: a commentary on Peter the Lombard 
De Unitate Intellectus: against the Averrhoists

St. Alphonsus Liguori (Bio)

Personal

Founded the Redemptorist Order in 1732 
Bishop of St. Agatha, 1756-1775 
Named in 1871 by Pius IX

Place and dates

1696-1787

Writings

Moral Theology 
Glories of Mary: (1750)

St. Ambrose (Bio)

Personal

Bishop of Milan (374) 
Defended the churches of Milan against Arianism 
Friend of Monica, mother of Augustine, and finally brought Augustine into the Church

Place and dates

(Tier, now in Germany) 340?-397

Writings

On Faith: a Christian morals manual 
On the Sacraments: an exegetical treatise 
On the Holy Spirit: an exegetical treatise 
Composed many hymns

St. Anselm (Bio)

Personal

Benedictine monk 
Theologian 
Philosopher; proposed famous argument for existence of God 
Archbishop of Canterbury, 1093-1100 
Named in 1720 by Clement XI

Place and dates

1033-1109

Writings

Monologium (1077): God as highest being and His attributes 
Proslogium (1078): Faith seeking understanding 
Cur Deus Homo (1093): On the Incarnation and crucifixion

St. Anthony of Padua (Bio)

Personal

Franciscan monk 
Theologian 
Exceptional intellectual and oratorical gifts 
Named in 1946 by Pius XII

Place and dates

1195-1231

Writings

Lector in theology: taught at Bologna, Montpellier, and Toulouse

St. Athanasius (Bio)

Personal

Eastern theologian 
Named in 1568 by Pius V

Place and dates

293-373

Writings

Discourses Against the Arians 
History of the Arians 
Apology Against the Arians 
On the Decrees of the Nicene Synod

St. Augustine (Bio)

Personal

Son of Monica (332?-387) 
Born a pagan 
Converted in 387 and baptized by Ambrose 
Ordained a priest in 391 
Bishop of Hippo (395) 
Combated Manichean heresy (conflict of Good and Evil) 
Martin Luther and John Calvin were close students of the works of Augustine

Place and dates

(Numidia, now Algeria) 354-430

Writings

Confessions (c. 400): his autobiography 
The City of God (413-426): great Christian apologia; a theological philosophy of history 
Retractions (428): final verdict of earlier works 
Epistles (386-429) 
On Free Will (388-395) 
On Christian Doctrine (397) 
On Baptism: Against the Donatists (400) 
On the Trinity (400-416) 
On Nature and Grace (415) 
Homilies

St. Basil the Great (Bio)

Personal

Brother of Gregory of Nyssa and a friend of Gregory of Nazianzus 
Patriarch of Eastern monasticism 
Wrote a rule of the monastic way of life 
Founded the Basilian monks (360) 
Bishop of Caesarea (370).

Place and dates

(Caesarea Mazaca) 329?-379

Writings

Against Eunomius: written against the Arian leader Eunomius 
On the Holy Spirit: a doctrinal treatise 
Moralia: an anthology of New Testament verses 
Liturgy of St. Basil

St. Bede, the Venerable (Bio)

Personal

English Benedictine monk 
Prolific writer 
Named in 1899 by Leo XIII

Place and dates

673?-735

Writings

Ecclesiastical History of the English People (731) 
On the Reckoning of Time (725) 
Historia Abbatum (725)

St. Bernard of Clairvaux (Bio)

Personal

Cistercian monk 
Preacher of the Second Crusade 
Founded over 90 monasteries 
Named in 1830 by Pius VIII

Place and dates

1090-1153

Writings

The Love of God (1127) 
Consideration to Eugene III (1148)

St. Bonaventure (Bio)

Personal

Franciscan friar 
Philosopher, theologian 
Cardinal archbishop of Albano 
Assisted at Council of Lyons 
Named in 1588 by Sixtus V

Place and dates

1217-1274

Writings

Breviloquium (1254): Commentary on Sacred Scripture 
Journey of the Mind to God (1259) 
Life of St. Francis of Assisi (1263)

St. Catherine of Siena (Bio)

Personal

Western mystic 
Joined the Dominican Order in 1353 
Convinced Pope Gregory XI to return to Rome from Avignon 
Noted for works of charity and unity in the Church 
Named in 1970 by Pope Paul VI

Place and dates

1347-1380

Writings

Letters on spiritual matters 
Dialogue: her ideals of reform and repentance

St. Cyril of Alexandria (Bio)

Personal

Patriarch of Alexandria in 412 
Leader of the Council of Ephesus, 431 
Instrumental in condemning Nestorianism

Place and dates

(Alexandria) 376-444

Writings

Against Nestorius 
Against Julian the Apostate 
Prolific writer

St. Cyril of Jerusalem (Bio)

Personal

Bishop of Jerusalem in 351 
Embroiled in controversy over episcopal duties

Place and dates

(Jerusalem) 315?-387?

Writings

23 Treatises: addressed to catechumens and newly baptized; some treatises are doctrinal and present the creed of the Church; some are concerned with ritual and present a detailed account of Baptism, Eucharist and chrism

St. Ephraem the Syrian (Bio)

Personal

Deacon, monk 
Noted for his defense of the Church, the mysteries of Our Lord and the honor of the Virgin Mary. 
Named in 1920 by Benedict XV

Place and dates

306?-373

Writings

Wrote exegetical works and hymns

St. Francis de Sales (Bio)

Personal

Named in 1877 by Pius IX 
Bishop of Genova, 1602-1622 
Founded the Order of the Visitation 
Confronted the rise of Calvinism

Place and dates

1567-1622

Writings

Introduction to the Devout Life: (1609) shows how ordinary life can be sanctified

St. Gregory Nazianzus (Bio)

Personal

Bishop of Sasima (371) 
Took charge of the Nicene congregation of Constantinople where he delivered five discourses on the Trinity that earned him fame as "The Theologian"

Place and dates

(Nazianzus in Capadocia, now Turkey) 329?-389

Writings

Philokalia (Love of the Beautiful): an anthology of the writings of Origen

St. Gregory the Great (Bio)

Personal

Prefect of Rome in 570 
Became a monk in 575 
Elected pope (r. 590-604) 
Enhanced prestige of the papacy 
Upheld Rome's traditional claims of church primacy over the patriarch of Constantinople 
Introduced liturgical reforms and Gregorian chant 
Extensive pastoral activity.

Place and dates

(Rome) 540?-604

Writings

Moralia: a commentary on the Book of Job 
Pastoral Care: describes the ideal bishop; instruction on the practice and nature of preaching 
Dialogues: legends of saints of his own time

St. Hilary of Poitiers (Bio)

Personal

Pagan, convert in 350 
Bishop of Poitiers, 353 
Defended the decrees of the Council of Nicaea 
Named in 1851 by Pius IX

Place and dates

315?-368?

Writings

De Trinitate: against the Arians 
De Synodis 
Commentary of the Psalms 
Commentary of Matthew's Gospel

St. Isidore of Seville (Bio)

Personal

Encyclopedic knowledge 
Archbishop of Seville 
Conversion of Visigoths 
Organizing the church in Spain 
Named in 1722 by Innocent XIII

Place and dates

560?-636?

Writings

De Natura Rerum 
Etymologies: an encyclopedia 
Chronica Majora: a compilation from church historians 
Biographies 
A summary of Christian doctrine

St. Jerome (Bio)

Biblical scholar 
Ordained a priest in 386 
Secretary to Pope Damasus I in 382 
Confronted many heresies, especially Pelagianism

Place and dates

(Stridon, present day Slovenia) 345?-419

Writings

The Vulgate: translated the Bible from Hebrew and Greek into Latin, 383-384, in Rome

St. John Chrysostom (Bio)

Personal

Ordained a priest in 386 
Greatest orator of the early Church 
Patriarch of Constantinople in 398

Place and dates

(Antioch, Syria) 349?-407

Writings

On the Priesthood 
Homilies 
Wrote commentaries, epistles, treatises, and liturgies

St. John Damascene (Bio)

Personal

Financial officer to Saracen caliph 
Resigned in 700 
Entered a monastery and ordained a priest 
Opposed the Iconoclasts

Place and dates

(Damascus, Syria) 675-749

Writings

Source of Knowledge: three part text of dogmatic theology in the early Greek church; contains a complete theological system based on the early Greek fathers and synods of 4th-7th centuries

St. John of the Cross (Bio)

Personal

Western mystic 
Combined mysticism with the theology and philosophy of Aquinas 
Became a Carmelite monk in 1563 
Ordained a priest in 1567 
Organized the Discalced Carmelites in 1568 
Imprisoned for monastic reform 1576-1577 
Named in 1926 by Benedict XV

Place and dates

1542-1591

Writings

Spiritual Canticle: a mystical poem 
Living Flame of Love: a mystical poem 
Dark Night of the Soul: describes the soul's progress in union with God

St. Lawrence of Brindisi (Bio)

Personal

Capuchin 
Worked for the conversion of the Jews 
Confronted the rise of Lutheranism 
Organized Catholic princes against Turkish invasion 
Named in 1959 by John XXIII

Place and dates

1559-1619

Writings

Sermons 
A commentary on Genesis 
Writings against Lutheranism

St. Leo the Great (Bio)

Personal

Pope, 440-461 
Confirmed the doctrine of the Incarnation (Council of Chalcedon, 451) 
Held the doctrinal primacy of Rome 
Persuaded Atilla the Hun not to invade Rome 
Named in 1754 by Benedict XIV

Place and dates

461

Writings

143 surviving letters 
96 sermons

St. Peter Canisius (Bio)

Personal

Jesuit 
Second great Apostle of Germany 
Leader, Counter-Reformation 
Named in 1925 by Pius XI

Place and dates

1521-1597

Writings

Catechism (1560): instructed the faithful to defend their Faith

St. Peter Chrysologus (Bio)

Personal

Called chrysologus (golden-mouthed) because of exceptional preaching eloquence 
Archbishop of Ravenna, 433-450 
Named in 1729 by Benedict XIII

Place and dates

406-450

Writings

Many sermons survive

St. Peter Damian (Bio)

Personal

Benedictine monk 
Cardinal and Bishop of Ostia 
Ecclesiastical statesman and reformer 
Named in 1828 by Leo XII

Place and dates

1007-1072

Writings

Notable poet 
Wrote reforms for popes, clergy, monks

St. Robert Bellarmine (Bio)

Personal

Jesuit theologian 
Cardinal archbishop of Capua 
Revision of the Vulgate (1592) 
Leader of the Counter Reformation 
Named in 1931 by Pius XI

Place and dates

1542-1621

Writings

Disputations on the Controversies of the Christian Faith: (1568-93)

St. Teresa of Avila (Bio)

Personal

Western mystic 
Foundress of the Order of Discalced Carmelites 
Entered the convent in 1535 
Founded the new order in 1562 
Worked with the aid of St. John of the Cross, Spanish mystic and Doctor of the Church 
Named in 1970 by Pope Paul VI

Place and dates

1515-1582

Writings

The Way of Perfection: (1565) advice to her nuns 
The Interior Castle: (1577) an eloquent description of the contemplative life 
The Foundations: (1573-1582) the origins of the Discalced Carmelites

St. Therese of Lisieux (Bio)

Personal

Carmelite Nun: Sister Theresa of the Child Jesus
Also known as "The Little Flower of Jesus"
Canonized: May 17, 1925
Created a Doctor of the Church by Pope John Paul II, October 19, 1997
The third woman among 33 Doctors

Place and dates

Born: Alencon, France, January 2, 1873
Died: Lisieux, France, September 30, 1897

Writings

Autobiography of a Saint: Letter and Spiritual Counsels

St. Thomas Aquinas (Bio)

Personal

Theologian 
Named in 1568 by Pius V 
Italian philosopher 
Educated at Monte Cassino 
Ordained a priest in 1250 
Advisor and lecturer to the papal court, 1259-1268

Place and dates

1225-1274

Writings

Eighty works are ascribed to him 
Summa Contra Gentiles: "On the Truth of Catholic Faith," 1261-1264: one of his greatest works, closely reasoned treatise on the truth of Christianity 
Summa Theologica: a summary of theology, (1265-1273)