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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.

100–125 · Early Church

Saint Arianne of Phrygia (Greek: Άριάδνη; died 130 AD) is a 2nd-century Christian saint and martyr. Ariadna was a slave woman to a certain Tertullus in Prymnessus when by an alleged edict of Hadrian and Antoninus, Christianity was outlawed.

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.

303 · Early Church

Aristeus (died c. 303) was a hieromartyr and Bishop of Capua. His feast day is July 2. Saint Aristeus is often identified with Agrestius Chromatius, who served as a Roman prefect in the 280s. In 286, he moved from Rome to Sinuessa and was subsequently appointed Bishop of Capua.

150–134 · Early Church

Aristides the Athenian (also Saint Aristides or Marcianus Aristides; Greek: Ἀριστείδης Μαρκιανός) was a 2nd-century Christian Greek author who is primarily known as the author of the Apology of Aristides.

-50–100 · Early Church

Aristobulus of Britannia is a Christian saint named by Hippolytus of Rome (170–235) and Dorotheus of Gaza (505–565) as one of the Seventy Disciples mentioned in Luke 10:1–24 and as the first bishop in Roman Britain.

284 · Early Church

Ariston (died c. 284) was a martyr from Campania. His feast day is July 2. Saint Ariston suffered alongside Crescentian, Futychian, Urban, Vitalis, Justus, Felicissimus, Felix, Marcia, and Symphorosa in Campania, in southern Italy, during the persecutions of Diocletian.

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Saint Armand de Vannes served as a presbyter and held the position of bishop. He is recognized as a Catholic saint.

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.

1892–1915 · Contemporary

Armen Dorian (Armenian: Արմէն Տօրեան; 28 January 1892 – 1915) was a renowned Armenian poet, teacher, and editor who lived in the Ottoman Empire. He studied at the Sorbonne University in Paris, France. He wrote poetry in French and Armenian.

1870–1921 · Contemporary

Armenag Haigazian (Armenian: Արմենակ Հայկազեան; 1870–1921), was an Armenian theologian, educator, scientist, linguist and musician. He was born to Harutune Haigazian and Mary Tavonkian on September 22, 1870, in Hadjin, Cilicia, Ottoman Empire, now Turkey.

451 · Early Church

Armentarius (Spanish: Armentario) was the Bishop of Mondoñedo, when its seat was still at Dumium, from at least 984 until his death sometime between 1018 and 1025. Armentarius is first recorded as bishop on 24 April 984.

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.

1837–1909 · Contemporary · Divine Word Missionaries

Arnold Janssen SVD (5 November 1837 – 15 January 1909), was a German-Dutch Catholic priest and missionary who is venerated as a saint. He founded the Society of the Divine Word, a Catholic missionary religious congregation, also known as the Divine Word Missionaries, as well as t…

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.

358 · Early Church

Arsacius of Nicomedia (d. 24 August 358) was a soldier in the Roman army and is considered a saint of the Catholic church. According to tradition, he converted to Christianity and was arrested during the reign of Roman emperor Licinius.

400–405 · Early Church

Arsacius of Tarsus (Greek: Ἀρσάκιος; before 324 – 11 November 405) was the intruding archbishop of Constantinople from 404 to 405, after the violent expulsion of John Chrysostom.

500–401 · Early Church

Saint Arsatius or Arsacius is a saint of whose life virtually nothing is known. He is said to have been a bishop of Milan, who lived either around 400 or in the 6th century, and possibly a martyr, but there is no evidence.

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.

1833–1905 · Contemporary

Arsenia, born Anna Gavrilovna Dobronravova, and known in the great schema as Thomaisa (born 1879 in Shagarskoye, died January 23, 1939, in Ivanovo), was a Russian Orthodox nun and a holy new martyr.

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.

1840–1924 · Contemporary

Saint Arsenios the Cappadocian (Greek: Ὅσιος Ἀρσένιος ὁ Καππαδόκης; 1840 – November 10, 1924), born in Kephalochori, Cappadocia (Greek: Κεφαλοχώρι) was a Greek dean and the spiritual father of Paisios of Mount Athos. He had a brother named Vlasios.

1697–1772 · Modern

Metropolitan Arsenius (secular name Alexander Ioannovich Matsieyevich, Russian: Алекса́ндр Иоа́ннович Мацее́вич; 1697, Volodymyr – 28 February 1772, Reval) was bishop of the Russian Orthodox Church, metropolitan of Rostov and Yaroslavl who protested against the confiscation of th…

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…

201–300 · Early Church

Artemas of Pozzuoli was born in 201 and died in 300 in Pozzuoli. A citizen of Ancient Rome, he is recognized as a saint.

100 · Early Church

Artemas of Lystra (Greek: Ἀρτεμᾶς) was an early Christian saint, who is mentioned in the New Testament. He is mentioned in Paul's Epistle to Titus (Titus 3:12). He is believed to have served as the Bishop of Lystra, and to have been one of the Seventy Disciples.

201–362 · Early Church

Artemius (Latin: Flavius Artemius; Ancient Greek: Ἀρτέμιος; died 362), also known as Shallita, spelt Shalita or Chalita (Classical Syriac: ܫܠܝܛܐ, romanized: Shalliṭā, lit. 'The empowered one') was a Syrian general of the Roman Empire and dux Aegypti or imperial prefect of Roman E…

320–396 · Early Church

Artemius, also known as Saint Artemius (in Latin: Artemius), was the sixth bishop of Clermont in the 4th century. Through his daughter Arthemia, he is also the ancestor of Saint Rusticus of Lyon. He is recognized as a saint by the Roman Catholic Church and the Orthodox Church.

250–305 · Early Church

Saint Artemon was born in Laodicea on the Lycus in 250. He died in 305.

1532–1545 · Reformation

Artemius of Verkola (Russian: Артемий Веркольский, romanized: Artemy Verkolsky; 1532 – 23 June 1545) is a Russian child saint venerated in the Russian Orthodox Church.

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.

1881–1915 · Contemporary

Artin Tchitchéguian was a physician and pharmacist born in 1881. He died in 1915 during the Armenian Genocide and is recognized as a saint.

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Uddalaka Aruni (fl. c. 8th century BCE), (Devanagari: उद्दालक आरुणि) also referred to as Uddalaka or Aruni or Uddalaka Varuni, was a revered Vedic sage of Hinduism.

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Aré or Aregius of Nevers was bishop of Nevers in France and is known because he subscribed to the deeds of both the Fifth Council of Orléans, in 549 and the Second Synod of Paris in 551.