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544–560 · Medieval

Arthelais (Italian: Sant' Artellaide) (544–560) is venerated as a Christian saint. She is one of the patron saints of Benevento, with Barbatus of Benevento and Bartholomew being the others. Her feast day is 3 March.

600–596 · Medieval

Saint Asaph (or Asaf, Asa) was, in the second half of the 6th century, the first Bishop of St Asaph, i.e. bishop of the diocese of Saint Asaph. No traditional Welsh account devoted to the life of Asaph exists. He is, though, well-attested to through place names.

1121–1195 · Medieval · Cistercians

Ascelina (1121–1195), was a French Cistercian nun and mystic. Ascelina spent the majority of her life at the Cistercian convent at Boulancourt, Haute-Marne, France. It is believed that she was a relative of St. Bernard.

800–826 · Medieval

Ashot I the Great (Georgian: აშოტ I დიდი ashot I didi) (died 826/830) was a presiding prince of Iberia (modern Georgia), first of the Bagratid family to have attained to this office c. 813.

1245 · Medieval

Assalone of Capodistria was a Catholic priest and Roman Catholic Bishop of Capodistria who held citizenship in the Republic of Venice. Born in Koper, he died there in 1245. He is recognized as a blessed.

955–1030 · Medieval · Benedictines

Saint Astrik of Pannonhalma (also known as Anastasius, Astericus, Ascrick, Astrissicus) (died c. 1030/1040) is a saint of the 11th century. Radla was a Czech or Croat from Bohemia, who was a monk in Hungary.

701–860 · Medieval

Athanasia of Aegina (c.790 in Aegina – 15 August 860 in Timia, Greece) was a Byzantine saint and abbess. Athanasia's hagiographer called her "this praiseworthy woman, who bears the name of immortality, who lived her life admirably".

830–872 · Medieval

Saint Athanasius I (c. 832 – 872) was the bishop of Naples from 850 to his death. This Athanasius should not be confused with his nephew, Athanasius II.

1230–1310 · Medieval

Athanasius I of Constantinople (Greek: Ἀθανάσιος; c. 1230 – 28 October 1310) was the Ecumenical Patriarch of Constantinople for two terms, from 1289 to 1293 and from 1303 to 1309. He was born in Adrianople and died in Constantinople.

820 · Medieval

Saint Athanasius was born in Catania in 820. He is recognized as a saint.

920–1000 · Medieval

Athanasius the Athonite (Greek: Ἀθανάσιος ὁ Ἀθωνίτης; c. 920 – c. 1003), was a Byzantine monk who is considered the founder of the monastic community on the peninsula of Mount Athos, which has since evolved into the greatest centre of Eastern Orthodox monasticism.

1302–1380 · Medieval

Athanasius the Meteorite (Greek: Αθανάσιος ο Μετεωρίτης; 1302–1380) was a 14th-century Christian monk. He is canonized as a saint by the Eastern Orthodox Church. His feast day is celebrated on April 20.

1176 · Medieval

Athanasius of the Kiev Caves, also known as Athanasius the Recluse (died c. 1176), was an Orthodox saint and a monk of the Kiev Pechersk Lavra. Information about his life is scarce and comes primarily from his biography in the Kiev Caves Patericon.

801–926 · Medieval

Athelm (or Æthelhelm; died 8 January 926) was an English churchman, who was the first Bishop of Wells, and later Archbishop of Canterbury. His translation, or moving from one bishopric to another, was a precedent for later translations of ecclesiastics, because prior to this time…

550 · Medieval

600–600 · Medieval

Athracht (Modern Irish Naomh Athracht; in Latin sources Attracta) is the patron saint of the parish of Locha Techet (Lough Gara) and Tourlestrane, County Sligo, Ireland. She was a sister of Bishop Conal of Drumconnell. Her feast day is 11 August.

741 · Medieval

Abbess and saint

501–627 · Medieval

Attala or Atala (died 622) was a disciple of Columbanus and his successor as abbot of Bobbio from 615. Attala was originally from Burgundy, and first became a monk at the abbey of Lérins.

850–919 · Medieval · Benedictines

Attilanus (Atilanus, Aragonese: Sant Atilano) (937–1007) was an Aragonese Benedictine and bishop of Zamora. He was prior of Moreruela Abbey. Saint Atilan (Attilanus), bishop of Zamora (Oct. 5, 10th century).

1070–1153 · Medieval · Benedictines

Atto of Pistoia, or Saint Atto (Portuguese: Santo Atão; c. 1070 – 22 May 1153), was a Catholic bishop and a professed member from the Vallumbrosan Order as well as the Bishop of Pistoia and a noted historiographer. Atto was born around 1070.

1044 · Medieval · Benedictines

Ató of Oña or Adó (in Latin Atto or Attus, in Spanish Atón; Aragon or Catalonia, second half of the 10th century – Oña, Burgos, c. 1044) was an Aragonese bishop who retired as a hermit to the Monastery of San Salvador de Oña. He is venerated as a saint by the Catholic Church.

660–725 · Medieval

Saint Aubert, also known as Saint Autbert, was bishop of Avranches in the 8th century and is credited with founding Mont Saint-Michel. Aubert lived in France during the reign of Childebert III (695-711) and died about 720.

600–669 · Medieval

Aubert of Cambrai (French: Aubert de Cambrai) or Aubertus was a Merovingian Bishop of Cambrai and Arras and a Frankish saint. Aubert of Cambrai was born around c. 600 AD in Austrasia, Francia.

500 · Medieval

Auctor was a French Catholic priest who served as the Roman Catholic Bishop of Metz. He died in 500 and is recognized as a saint in the Catholic Church.

609–686 · Medieval

Audoin (Latin: Audoenus; AD 609 – on 24 August 684), venerated as Saint Audoin, was a Frankish bishop, courtier, hagiographer and saint. He authored Vita Sancti Eligii which outlines the life and deeds of Eligius, his close friend and companion in the royal court and the Church.

595–670 · Medieval · Benedictines

Audomar (died c. 670), better known as Omer, was a bishop of Thérouanne, after whom nearby Saint-Omer in northern France was named. He is venerated as a saint in the Catholic and Eastern Orthodox churches.

410–500 · Medieval

Saint Augusta of Treviso, also known as Augusta of Ceneda, Augusta of Tarvisium, or Augusta of Serravalle, is venerated as a virgin martyr. Her Acts were written in the 16th century by Minuccio Minucci di Serravalle, who was secretary to Pope Clement VIII and Protonotary apostol…

1260–1323 · Medieval · Dominican Order

Augustin Kažotić (Italian: Agostino Casotti, Hungarian: Kazotics Ágoston; 1260 – 3 August 1323) was a Croatian prelate of the Catholic Church and professed member from the Order of Preachers who served as the Bishop of Lucera from 1322 until his death.

1430–1493 · Medieval · Dominican Order

Augustine Fangi (also, Augustine of Biella; 1430 – 22 July 1493) was an Italian Dominican friar and Catholic priest. He was commonly regarded in his time as a miracle worker, and, in serving as the prior of several of his Order's monasteries, was concerned with restoring and main…

560 · Medieval

Augusto di San Sinforiano was a French abbot born in Bourges. He died in Bourges in 560 and is recognized as a saint.

573–603 · Medieval

Saint Aunarius (Aunacharius) (French: Aunaire, Aunachaire, Anachaire) (c.540 – c. 603 AD) was bishop of Auxerre during the 6th century. Born in Orleans of noble birth, he was brought up in the royal court of Guntram.

810–856 · Medieval

Aurea of Córdoba (810–856) was a saint, nun, and martyr, part of the Martyrs of Córdoba, a group of 48 Christian martyrs executed during Muslim rule in al-Andalus. Aurea's feast day is 19 July.

1027 · Medieval

Saint Aurelia of Regensburg (died 1027), also known as Aurelia of Ratisbon, is an 11th-century Roman Catholic German saint. According to local tradition, Aurelia was a daughter of Hugh Capet, the first King of the Franks.

523–551 · Medieval

Aurelianus (523 – 551) was Archbishop of Arles from 546 to 551. His predecessors were Auxanius (bishop form 542–546) and Caesarius of Arles (d. 542). His father Sacerdos (d. 552) was an Archbishop of Lyon. His cousin Nicetius (d. 573) succeeded his father as Archbishop of Lyon.

825–852 · Medieval

Saint Aurelius (from the Latin aurelius, golden, valuable as gold) (Córdoba, 825 – ibid., July 27, 852) was a Christian martyred during the Caliphate of Abd al-Rahman II and canonized by the Catholic Church alongside his wife, Saint Natalia.

567 · Medieval

Ausano (Milan, ... – Milan, ...; fl. 6th century) was Archbishop of Milan shortly after the middle of the 6th century. He is venerated as a saint by the Catholic Church, which commemorates him on September 3 in the Roman Martyrology.

1000–1068 · Medieval · Benedictines

Austind of Auch (or Ostent of Auch, Saint Austind), born around 1000 in Bordeaux (Gironde) and died on July 26, 1068, in Auch (Gers), was abbot of Saint-Orens from 1047 to 1049, then archbishop of Auch from 1049 to 1068.

401–501 · Medieval

Austol (Welsh: Austel; Latin: Austolus) was a 6th-century Cornish holy man who lived much of his life in Brittany. He was a friend of Mewan, who founded the Saint-Méen Abbey in Brittany. Mewan is said to have been his godfather.

630–704 · Medieval

Austrebertha (Austreberta, Eustreberta, Austreberta of Pavilly; French: Austreberthe) (630–February 10, 704) was a French nun of the Middle Ages, who took the veil very young, and became a nun at the Port Monastery in the Ponthieu.

551–624 · Medieval

Saint Austregisilus (Outrille, Aoustrille; died 624) was a Frankish bishop and bishop of Bourges from 612 until his death in 624. He is venerated as a saint in the Catholic Church, with his feast day is 20 May.

690 · Medieval

Autbod or Obode was a 7th-century Irish Christian missionary in areas that are now in Belgium and northern France. A companion of Foillan and Saint Ultan, he went on preaching circuits of Hainaut, Artois and Picardy before withdrawing to a hermitage near Laon, where he probably…

730–784 · Medieval · Benedictines

Autpert Ambrose (Ambroise) (Latin: Ambrosius Autpertus) (ca. 730 – 784) was a Frankish Benedictine monk. An abbot of San Vincenzo al Volturno in South Italy in the time of Desiderius, king of the Lombards, Autpert wrote a considerable number of works on the Bible and religious su…

1060–1127 · Medieval · Benedictines

The poet Ava (c. 1060 – 7 February 1127), also known as Frau Ava, Ava of Göttweig or Ava of Melk, was the first named female writer in any genre in the German language. She is the author of five poems which focus on Christian themes of salvation and the second coming of Christ.

785–801 · Medieval

Saint Aventin was a Frankish saint and hermit of the 8th century. Born near Bagnères-de-Luchon in the Pyrenees, Aventin became a hermit in the valley of Larboust. A legend says that he performed many miracles.

1180 · Medieval

Aventinus was a hermit and friend of Thomas Becket. Living the life of a hermit in Tours, France, before being ordained a deacon by Thomas Becket, and subsequently accompanied him to the Synod of Tours in 1163.

1320–1380 · Medieval · Carmelites

Avertanus of Lucca (Limoges, 1320 – Lucca, 1380) was a French religious and pilgrim, and a member of the Carmelite Order. He is considered a blessed in the Catholic Church, and his feast day is celebrated on February 25.

487–570 · Medieval

Saint Avit du Périgord was born in 487 in Lanquais. He died in 570 in Saint-Avit-Sénieur and is recognized as a Catholic saint.

525–594 · Medieval

Avitus I of Clermont (French: Avit de Clermont; c. 525 - c. 600) was a Bishop of Clermont in the 6th century. He is venerated as a saint in the Eastern Orthodox Church and Roman Catholic Church. His feast day is celebrated on 21 August. He may have been born in the year 525.

450–530 · Medieval · Benedictines

Saint Avitus of Micy was a Catholic priest and a member of the Benedictine order. Born in 450 and dying in 530, he is recognized as a saint within the Catholic Church.

450–518 · Medieval

Alcimus Ecdicius Avitus (c. 450 – February 5, 517/518 or 519) was a Latin poet and bishop of Vienne in Gaul. His fame rests in part on his poetry, but also on the role he played as secretary for the Burgundian kings.