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511–591 · Medieval

Aredius, also Yrieix, Abbé d'Attanum and Arède d'Atane (c. 510 – 25 August 591, at Saint-Yrieix in the Haute-Vienne), was chancellor to Theudebert I, king of Austrasia, and later Abbot of Attane (or Atane, Latin: Attanum).

535–614 · Medieval

Aredius of Gap (Arigius, Arey) (c. 575, Chalon-sur-Saône – c. 605) was bishop of Gap. He is a Catholic and Orthodox saint, with feast day May 1.

450–523 · Medieval

Arethas or Aretas (Arabic: الحارث بن كعب, romanized: al-Ḥārith ibn Kaʿb), also known as Ḥārith ibn Kaʿb, was the leader of the Miaphysite Christian community of Najran in the early 6th century; he was executed during the persecution of Christians by the king of Yemen, Dhu Nuwas,…

860–935 · Medieval

Arethas of Caesarea (Greek: Ἀρέθας; c. 860 - c. 939) was Archbishop of Caesarea Mazaca in Cappadocia (modern Kayseri, Turkey) early in the 10th century, and is considered one of the most scholarly theologians of the Greek Orthodox Church.

452–515 · Medieval

Aelia Ariadne (Greek: Ἀριάδνη) (c. 450 – 515) was Eastern Roman empress as the wife of Zeno and Anastasius I. She is venerated as a saint in the Eastern Orthodox Church, with her feast day falling on August 22. Ariadne was the eldest daughter of Leo I and Verina.

1010–1066 · Medieval

Saint Arialdo (c. 1010 – June 27, 1066) is a Christian saint of the eleventh century. He was assassinated because of his efforts to reform the Milanese clergy. Arialdo was the child of a noble family, born at Cutiacum (Cucciago), near Como.

482–570 · Medieval

Saint Armel (Welsh: Arthfael, lit. "Wolf-Prince"; Latin: Armagilus) was an early 6th-century holy man in Brittany. Armel is said to have been a Breton prince, born to the wife of King Hoel while they were living in Glamorgan in Wales in the late 5th century.

750–732 · Medieval

Armentarius of Pavia was Bishop of Pavia from 711 to 732. Armentarius succeeded Bishop Damian. During his episcopacy, he had an ongoing dispute with Benedict, Bishop of Milan, who insisted that Pavia was historically under the Metropolitan See of Milan, while Armentarius maintai…

850–892 · Medieval

Saint Arn or Arno von Endsee (died 13 July 892) was the Bishop of Würzburg from 855 until his death. He was a pupil of Bishop Gozbald, who died on 20 September 855; Arn was elected bishop in his place.

560–611 · Medieval

Arnoald, also called Arnoldus or Arnual (c. 540/560 – c. 611), was a Bishop of Metz between 601 and 609 or 611, the successor of his uncle Agilulf. He was the son of Ansbertus, a senator, and his wife Blithilde, whose parents were Charibert I and Ingoberga.

1040–1087 · Medieval · Benedictines

Arnold (Arnoul) of Soissons or Arnold or Arnulf of Oudenburg (c. 1040–1087) is a saint of the Catholic Church, the patron saint of hop-pickers, Belgian brewers.

750 · Medieval

Arnoul of Mouzon (born and died at an unknown date in the 8th century) was, according to tradition, an obscure pilgrim who was murdered by brigands, buried, and forgotten. It was the miracles surrounding his tomb and relics that convinced the Church of his sanctity.

500–535 · Medieval

Arnoul of Yvelines (Arnoult, Arnoul, or Arnulfus), known as Saint Arnoult, is a legendary saint who is said to have been Bishop of Tours. The burial site attributed to him became the village where he is honored, Saint-Arnoult-en-Yvelines.

740 · Medieval

Saint Arnoul of Cysoing, of Flanders, and apparently martyred in 752, was a soldier.

582–641 · Medieval

Arnulf of Metz (c. 582 – c. 645) was a Frankish bishop of Metz and advisor to the Merovingian court of Austrasia. He later retired to the Abbey of Remiremont. In French he is also known as Arnoul or Arnoulf. In English he is known as Arnold. The Vita Sancti Arnulfi (c.

871 · Medieval

Arnulf of Toul was a Catholic priest and the Roman Catholic Bishop of Toul in West Francia. He died in 871 and is venerated as a saint in the Catholic Church.

951–993 · Medieval

Arnulf, also known as Arnoud or Arnold, succeeded his father in 988 as Count of Frisia, which by around AD 1100 would come to be referred to as the county of Holland. He was born in 951 in Ghent and because of this he is also known as Arnulf of Ghent.

1228 · Medieval · Cistercians

Saint Arnulphe de Cornibout was a Cistercian lay brother who died in 1228.

1050–1127 · Medieval

Arsen Iqaltoeli or Arsen of Iqalto (Georgian: არსენ იყალთოელი) (died c. 1127) was a Georgian churchman, theologian, calligrapher and religious author with noticeable role in the ecclesiastic life of Georgia in the reign of David IV "the Builder" (r.

810–904 · Medieval

Arsenius of Armo (Reggio Calabria, 810 – Armo, 904) was a Basilian monk who lived in the 9th century. The events of his life are known through the Bios of Saint Elias the Speleot, who was his disciple and companion until his death.

1200–1273 · Medieval

Arsenius of Constantinople (Latinised as Arsenius Autoreianus; Greek: Ἀρσένιος Αὐτωρειανός; c. 1200 – 30 September 1273), Ecumenical Patriarch of Constantinople, lived about the middle of the 13th century.

959 · Medieval

Arsenius (Arsenios) of Corfu, also known as Arsenius of Kerkyra, (died c.959) is one of the principal patron saints of Corfu along with Spyridon. Arsenius was born in Bethany near Jerusalem.

1410 · Medieval

Bishop Arsenius (died March 2, 1409, Tver) was a bishop of the Russian Orthodox Church, Bishop of Tver, and author of the oldest recension of the Kiev Caves Patericon (the Arsenian recension).

1101–1206 · Medieval · Carthusian Order

Artaldus, also known as Arthaud, was a 13th-century Carthusian Bishop of Belley. Born in the castle of Sothonod in Savoy, in 1101. Much of his childhood is not known but at the age of eighteen, Artaldus entered the court of Duke Amadeus III, but after a year or so he left to bec…

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.

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.

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).

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…

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.