Saints
- Alcuin (c. 735–804) — Scholar, teacher, adviser to Charlemagne
- Blessed Virgin Mary (1st century BC–1st century) — Mother of God, the Blessed Virgin
- Pope Cornelius (alias)
- Pope Gregory I (the Great) (alias)
- Pope Pius V (alias)
- St. Albert the Great (c. 1200–1280) — Dominican friar, Bishop of Regensburg, Doctor of the Church, philosopher-theologian
- St. Ambrose of Milan (c. 340–397) — Bishop of Milan, Doctor of the Church, Church Father
- St. Anselm of Canterbury (c. 1033–1109) — Archbishop of Canterbury, Doctor of the Church, philosopher-theologian
- St. Anthony of Padua (1195–1231) — Franciscan friar, Doctor of the Church, preacher
- St. Antony the Great (c. 251–356) — Desert Father, founder of Christian monasticism
- St. Apronianus — Martyr
- St. Athanasius of Alexandria (c. 296–373) — Bishop of Alexandria, Doctor of the Church
- St. Augustine of Hippo (354–430) — Bishop of Hippo, Doctor of the Church, Church Father
- St. Authbert of Cambrai (d. c. 674) — Bishop of Cambrai and Arras
- St. Bartholomew (1st century) — Apostle
- St. Basil the Great (c. 330–379) — Bishop of Caesarea, Doctor of the Church, Church Father; founder of Eastern monasticism
- St. Bede the Venerable (c. 672–735) — Benedictine monk, Doctor of the Church, historian and biblical commentator
- St. Benedict of Nursia (c. 480–547) — Founder of Western monasticism, Patriarch of Monks
- St. Bernard of Clairvaux (1090–1153) — Abbot of Clairvaux, Doctor of the Church, Cistercian reformer
- St. Bonaventure (1221–1274) — Franciscan friar, Cardinal, Doctor of the Church, philosopher-theologian
- St. Boniface (c. 675–754) — Apostle of the Germans, Archbishop of Mainz, martyr
- St. Charles Borromeo (1538–1584) — Cardinal, Archbishop of Milan, Church reformer
- St. Clement of Rome (d. c. 99) — Pope, disciple of Peter, Church Father
- St. Cyprian of Carthage (c. 210–258) — Bishop of Carthage, Church Father, martyr
- St. Cyril of Alexandria (c. 376–444) — Patriarch of Alexandria, Doctor of the Church
- St. Dionysius the Areopagite (traditionally 1st century (writings c. 5th–6th century)) — Disciple of Paul (traditional), mystical theologian
- St. Dominic (c. 1170–1221) — Founder of the Order of Preachers, Doctor of Sacred Theology
- St. Edmund of Canterbury (c. 1175–1240) — Archbishop of Canterbury
- St. Ephrem the Syrian (c. 306–373) — Deacon, hymnographer, Doctor of the Church
- St. Francis of Assisi (c. 1181–1226) — Founder of the Franciscan Order
- St. Gaugericus of Cambrai (c. 550–c. 625) — Bishop of Cambrai
- St. Ghislain (d. c. 681) — Hermit, founder of a monastery in Hainault
- St. Gregory Nazianzen (c. 329–390) — Archbishop of Constantinople, Doctor of the Church, Church Father
- St. Gregory of Nyssa (c. 335–c. 395) — Bishop of Nyssa, Church Father, brother of Basil the Great
- St. Gregory Thaumaturgus (c. 213–c. 270) — Bishop of Neocaesarea, wonder-worker
- St. Hilary of Poitiers (c. 310–367) — Bishop of Poitiers, Doctor of the Church
- St. Ignatius of Loyola (1491–1556) — Founder of the Society of Jesus
- St. Isidore of Seville (c. 560–636) — Archbishop of Seville, Doctor of the Church
- St. Jerome (c. 342–420) — Doctor of the Church, translator of the Vulgate Bible
- St. Jerome (alias)
- St. John Chrysostom (c. 347–407) — Archbishop of Constantinople, Doctor of the Church
- St. John Damascene (c. 675–749) — Doctor of the Church, theologian
- St. John Fisher (1469–1535) — Bishop of Rochester, Cardinal, martyr; canonized 1935
- St. John of Cambrai (fl. 7th century) — Bishop of Cambrai
- St. John the Anchorite (fl. 4th century) — Desert hermit
- St. John the Baptist (1st century) — Prophet, Forerunner of Christ
- St. Jordan of Saxony (c. 1190–1237) — Second Master General of the Dominican Order after St. Dominic
- St. Justin Martyr (c. 100–c. 165) — Early Christian apologist, philosopher, martyr
- St. Landelin (c. 625–c. 686) — Founder of monasteries in Frankish territory
- St. Leo the Great (c. 400–461) — Pope, Doctor of the Church
- St. Lietbert of Cambrai (c. 1010–1076) — Bishop of Cambrai
- St. Lucian (d. 312) — Priest, martyr, biblical scholar who made a new Greek edition of the Old Testament from Hebrew
- St. Ludger (c. 742–809) — Apostle of the Frisians, Bishop of Munster
- St. Macarius of Antioch (d. c. 1012) — Archbishop of Antioch in Armenia, pilgrim saint whose relics were venerated in Flanders
- St. Marcian (d. c. 387) — Holy monk, cited in Theodoret's Philotheos
- St. Menas (d. c. 309) — Egyptian soldier, Christian martyr
- St. Mercury (d. c. 250) — Roman soldier, Christian martyr
- St. Odo of Cambrai (c. 1050–1113) — Bishop of Cambrai
- St. Paulinus of Nola (c. 354–431) — Bishop of Nola, correspondent of Jerome
- St. Peter Damian (c. 1007–1072) — Cardinal-Bishop of Ostia, Doctor of the Church, Benedictine monk and reformer
- St. Plato of Studios (c. 735–814) — Monastic leader, abbot of the Studios Monastery at Constantinople
- St. Rabanus Maurus (c. 780–856) — Archbishop of Mainz, Benedictine monk, biblical commentator
- St. Remigius (fl. 9th century (if Remigius of Auxerre) or c. 437–533 (if Remigius of Rheims)) — Biblical commentator / Bishop of Rheims
- St. Robert Bellarmine (1542–1621) — Jesuit Cardinal, Doctor of the Church, controversialist
- St. Saturninus (d. c. 304) — Martyr
- St. Simeon the Stylite (c. 388–459) — Ascetic, pillar-saint
- St. Stephen (d. c. 34 AD) — First Christian martyr, deacon
- St. Symphorian (d. c. 178) — Christian martyr
- St. Theodore the Studite (759–826) — Monastic reformer, defender of icons
- St. Theodoric of Cambrai (fl. 7th century) — Bishop of Cambrai
- St. Thomas Aquinas (1225–1274) — Dominican friar, Doctor of the Church, philosopher-theologian
- St. Thomas More (1478–1535) — Lord Chancellor of England, martyr; canonized 1935
- St. Vincent (d. 304) — Deacon, martyr at Valencia
- St. Vincent Ferrer (c. 1350–1419) — Dominican friar, itinerant preacher
- St. Vincent Madelgarius (c. 607–c. 677) — Count of Hainault, later monk and saint
- St. Vindicianus of Cambrai (d. c. 712) — Bishop of Cambrai and Arras
- St. Waldetrudis (c. 612–c. 688) — Wife of Vincent of Hainault, later foundress of a convent at Mons
- St. Zenobius (c. 337–c. 417) — Bishop of Florence (traditionally)
- Victorinus (fl. 4th century) — Rhetorician of Rome, convert from paganism