* Saint Anastasius – a martyr under Nero

* Saint Anastasius the Fuller – martyr ( d. 304 )

* Saint Anastasius of Persia – Persian martyr ( d. 628 )

* Saint Anastasius of Pavia – bishop of Pavia ( d. 628 )

* Saint Anastasius Sinaita ( of Sinai ) – theologian, Father of the Eastern Orthodox Church, monk, priest, and abbot of the monastery at Mt.

* Astrik or Saint Anastasius of Pannonhalma – ambassador of Stephen I of Hungary ( d. 1030 )

* Saint Anastasius of Lleida

His other historical works included lives of the abbots of Wearmouth and Jarrow, as well as verse and prose lives of Saint Cuthbert of Lindisfarne, an adaptation of Paulinus of Nola's Life of St Felix, and a translation of the Greek Passion of St Anastasius.

Hildegard communicated with popes such as Eugene III and Anastasius IV, statesmen such as Abbot Suger, German emperors such as Frederick I Barbarossa, and other notable figures such as Saint Bernard of Clairvaux, who advanced her work, at the behest of her abbot, Kuno, at the Synod of Trier in 1147 and 1148.

Pope Saint Anastasius I, born in Rome the son of Maximus, was pope from 27 November 399 to 401.

Pope Saint Siricius, Bishop of Rome from December 384 ( the date in December — 15 or 22 or 29 — is uncertain ) until his death on 26 November 399, was successor to Damasus I and was himself succeeded by Anastasius I.

* January 22 – Saint Anastasius the Persian

* Saint Anastasius of Cyprus, monk

* Saints Theodore and Euprepius, and two men named Anastasius ( 7th century ), confessors and disciples of Saint Maximos the Confessor

* Saint Anastasius of Sinai, abbot

* Saint Anastasius, Bishop of Brescia in Lombardy, in Italy ( 610 )

* Saint Anastasius of Pavia ( 680 )

* Saint Cyril of Jerusalem ( c. 313 – 386 ), theologian and bishop

Saint Catherine of Siena, T. O. S. D, ( 25 March 1347 in Siena – 29 April 1380 in Rome ) was a tertiary of the Dominican Order, and a Scholastic philosopher and theologian.

Saint Jerome ( c. 347 – 30 September 420 ; ( also Hierom or Jerom ) (; ) was a Roman Christian priest, confessor, theologian and historian, and who became a Doctor of the Church.

Saint Thomas Aquinas of Aquin, or Aquino ( c. 1225 – 7 March 1274 ) was a philosopher and theologian in the scholastic tradition, known as " Doctor Angelicus, Doctor Universalis ".

Because of his path-finding synthesis of Aristotle and Biblical faith, Maimonides also had a fundamental influence on the great Church theologian Saint Thomas Aquinas.

* 354 – Saint Augustine of Hippo, North African theologian ( d. 430 )

He was a prominent mystical theologian, and was prior of the famous Augustinian Abbey of Saint Victor in Paris from 1162 until his death in 1173.

Here he studied under the theologian Hugo of Saint Victor, the most influential of all Victorine teachers.

Such exemplary saints include martyrs, confessors of the Faith, evangelists, or important biblical figures such as Saint Matthew, the Lutheran theologian and martyr to the Nazis, Dietrich Bonhoeffer, Salvation Army Founder William Booth, African missionary David Livingstone and Methodism's revered founder John Wesley are among many cited as Protestant saints.

Documented ideas similar to the Rede reach as far back as the fourth century theologian Saint Augustine of Hippo.

In panic owing to serious illness in 1093, William nominated as archbishop another Norman-Italian, Saint Anselm of Canterbury — considered the greatest theologian of his generation — but this led to a long period of animosity between Church and State, Anselm being a stronger supporter of the Gregorian reforms in the Church than Lanfranc.

* Edmund of Abingdon, Saint, theologian, Archbishop of Canterbury

* Nerses of Lambron, Saint, Archbishop of Tarsus, theologian

* Odo of Cambrai, Saint, bishop, theologian

* April 29 – Saint Catherine of Siena, Italian theologian ( b. 1347 )

* Saint Cyril, scholar, theologian, and linguist ( d. 869 )

* December 4 – Saint John of Damascus ( or Damascene ), theologian

* Saint Anselm of Canterbury, a medieval philosopher and theologian, becomes Archbishop of Canterbury.

* 1274 – March 7 – Saint Thomas Aquinas, Catholic theologian ( b. 1225 )

* March 7 – Saint Thomas Aquinas, Italian Catholic theologian ( b. 1225 )

Saint Teresa of Ávila, also called Saint Teresa of Jesus, baptized as Teresa Sánchez de Cepeda y Ahumada, ( March 28, 1515October 4, 1582 ) was a prominent Spanish mystic, Roman Catholic saint, Carmelite nun, and writer of the Counter Reformation, and theologian of contemplative life through mental prayer.

In the 15th century it was promoted by Alanus de Rupe ( aka Alain de la Roche or Saint Alan of the Rock ), a learned Dominican priest and theologian, who established the " 15 rosary promises " and started many rosary confraternities.

* Saint Mesrob, Armenian monk and theologian ( approximate date )

** Anastasius Sinaita

Traducianism was initially developed by Tertullian and arguably propagated by Augustine of Hippo, and has been endorsed by Gregory of Nyssa, Anastasius Sinaita, Hilary of Poitiers, Ambrose of Milan, many in the early Catholic Church ), various Lutheran churches, and some modern theologians such as Augustus H. Strong ( Baptist ), W. G. T. Shedd and Gordon Clark ( Presbyterian ), Lewis Sperry Chafer, Millard Erickson, Norman L. Geisler, Robert Culver, and Robert L. Reymond.

* Anastasius Sinaita

* Anastasius Sinaita

: PG 89: Anastasius Sinaita, Anastasius of Antioch, Anastasius ( abbot of Euthymius ), Anastasius IV Patriarch of Antioch, Antiochus of Sabe