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400–500 · Medieval

Saint Patrick was a fifth-century Romano-British Christian missionary and bishop in Ireland. Known as the "Apostle of Ireland", he is the primary patron saint of Ireland, the other patron saints being Brigid of Kildare and Columba. He is also the patron saint of Nigeria.

480–547 · Medieval · Benedictines

The 'Father of Western Monasticism,' he founded the monastery at Monte Cassino and wrote the famous Rule of St. Benedict.

598–655 · Medieval

The last martyr Pope, he was exiled and suffered for his defense of Christ's two wills against the Monothelite heresy.

1175–1275 · Medieval · Dominican Order

A Dominican friar and brilliant canon lawyer who compiled the 'Decretals' and served as Master General.

550–552 · Medieval

Aba I (or, with his Syriac honorific, Mar Aba I) or Mar Abba the Great was the Patriarch of the Church of the East at Seleucia-Ctesiphon from 540 to 552.

1004 · Medieval

Adérald (died 20 October 1004) was a Christian saint venerated by the Catholic Church. His feast day is celebrated on 20 October. Adérald was born around the mid-10th century to a father named Walon and a mother named Odrade.

1110–1167 · Medieval · Cistercians

Aelred of Rievaulx OCist (Latin: Aelredus Riaevallensis), also known as also Ailred, Ælred, or Æthelred; (1110 – 12 January 1167) was an English Cistercian monk and writer who served as Abbot of Rievaulx from 1147 until his death.

583–650 · Medieval

Saint Agilus (or Agilo, Ayeul, Aisle, Ail, Aile; c. 580–650) was a Frankish nobleman who became a Christian missionary in Bavaria and later was abbot of Rebais monastery near Paris, France. He was considered a saint, and his feast day is 30 August.

849–899 · Medieval

Alfred the Great (Old English: Ælfrǣd [ˈæɫvˌræːd]; c. 849 – 26 October 899) was King of the West Saxons from 871 to 886, and King of the Anglo-Saxons from 886 until his death in 899.

600–599 · Medieval

Anastasius I of Antioch was the Patriarch of Antioch twice (561–571 and 593–599). Alban Butler calls him "a man of singular learning and piety".

550–628 · Medieval

Saint Anastasius of Persia, also known by his native name Magundat, was a Zoroastrian soldier in the Sasanian army who later became a convert to Christianity and was martyred in 628. Anastasius was born in the city of Ray. He was the son of a magus named Bavi.

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).

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".

1100–1145 · Medieval · Cistercians

Baldwin (died 6 October 1145) was a Cistercian monk and later Archbishop of Pisa, a correspondent of Bernard of Clairvaux, and a reformer of the Republic of Pisa.

1080–1130 · Medieval · Benedictines

Blessed Berardo dei Marsi (1079 – 3 November 1130) was a Catholic Italian cardinal. He was proclaimed Blessed in 1802 as he was deemed to be holy and that miracles were performed through his intercession. Berardo dei Marsi was born in 1079 to Berardo and Theodosia.

565–612 · Medieval

Bertha or Aldeberge (c. 565– d. in or after 601) was a Frankish princess who became queen of Kent. She enabled the 597 Gregorian mission, led by Augustine, which resulted in the conversion to Christianity of Anglo-Saxon England.

828–907 · Medieval

Boris I (also Bogoris), venerated as Saint Boris I (Mihail) the Baptizer , was the ruler (knyaz) of the First Bulgarian Empire from 852 to 889.

486–577 · Medieval

Brendan of Clonfert (c. AD 484 – c. 577) is one of the early Irish monastic saints and one of the Twelve Apostles of Ireland. He is also referred to as Brendan the Navigator, Brendan the Voyager, Brendan the Anchorite, and Brendan the Bold.

453–525 · Medieval

Saint Brigid of Kildare or Saint Brigid of Ireland (Irish: Naomh Bríd; Classical Irish: Brighid; Latin: Brigida; c. 451 – c. 525) is the patroness saint (or 'mother saint') of Ireland, and one of its three national saints along with Patrick and Columba.

530 · Medieval

Saint Callwen was an early Welsh Christian saint from the Brychan family. There is some doubt about whether she existed. A church was dedicated to her in Defynnog, Brecknockshire.

500 · Medieval

Llangelynnin (Welsh pronunciation ; Welsh for The church of Celynnin) is a former parish in the Conwy valley, in Conwy county borough, north Wales.

1184–1242 · Medieval · Dominican Order

Ceslaus, O.P., (Polish: Czesław) (c. 1184 – c. 1242) was born in Kamień Śląski in Silesia, Poland, of the noble family of Odrowąż, and was a relative, possibly the brother, of Hyacinth of Poland.

1084–1127 · Medieval

Charles the Good (1084 – 2 March 1127) was Count of Flanders from 1119 to 1127. His murder and its aftermath were chronicled by Galbert of Bruges. He was beatified by Pope Leo XIII in 1882 through cultus confirmation.

660 · Medieval · Benedictines

Saint Clair of Dauphiné, also known as St. Clair of Vienne, was a Catholic abbot who "bequeathed to monasticism an example of religious excellence". He was born about 590 in Saint-Clair-du-Rhône and died in 660 in Vienne, France.

521–597 · Medieval

Columba or Colmcille (7 December 521 – 9 June 597 AD) was an Irish abbot and missionary evangelist credited with spreading Christianity in what is today Scotland at the start of the Hiberno-Scottish mission.

543–615 · Medieval · Q3454227

Saint Columbanus (Irish: Columbán; 543 – 21 November 615) was an Irish missionary notable for founding a number of monasteries after 590 in the Frankish and Lombard kingdoms, most notably Luxeuil Abbey in present-day France and Bobbio Abbey in present-day Italy.

1105–1154 · Medieval · Cistercians

Conrad of Bavaria (German: Konrad von Bayern; Italian: Corrado di Baviera) (c. 1105 – 17 March 1126 or 1154) was a Cistercian monk, the son of Henry the Black, Duke of Bavaria and Wulfhilde Billung of Saxony.

1241–1306 · Medieval · Franciscans

Conrad of Offida (c. 1241 - 12 December 1306) was an Italian Friar Minor preacher and founder of the Celestines. Conrad was born at Offida, a little town in the March of Ancona, c. 1241.

700–720 · Medieval

Saint Cuthburh or Cuthburg, Cuthburga (Old English: Cūþburh; died 31 August 725) was the first Abbess of Wimborne Minster. She was the sister of Ine, King of Wessex and was married to the Northumbrian king Aldfrith. Cuthburh was the daughter of Cenred of Wessex.

350–500 · Medieval

Saint Darerca of Ireland was a sister of Saint Patrick. Much obscurity is attached to her history, and it is not easy to disentangle the facts of her history from the network of legends which medieval writers interwove with her acts.

650–716 · Medieval

St. Donald of Sheridan, also known as Donivald or Domhnall, was an eighth-century Scottish saint who lived at Ogilvy, in the former Forfarshire.

920–946 · Medieval

Edmund I or Eadmund I (920/921 – 26 May 946) was King of the English from 27 October 939 until his death in 946. He was the elder son of King Edward the Elder and his third wife, Queen Eadgifu, and a grandson of King Alfred the Great.

586–633 · Medieval

Edwin (Old English: Ēadwine; c. 586 – 12 October 632/633), also known as Eadwine or Æduinus, was the King of Deira and Bernicia – which later became known as Northumbria – from around 616 until his death.

1271–1336 · Medieval · Third Order of Saint Francis

Elizabeth of Portugal (Elisabet in Catalan, Isabel in Aragonese, Portuguese and Spanish; 1271 – 4 July 1336), also known as Elizabeth of Aragon, was Queen of Portugal from 1282 to 1325 as the wife of King Denis.

700–657 · Medieval

Pope Eugene I (Latin: Eugenius I; died 2 June 657) was the bishop of Rome from 10 August 654 to his death on 2 June 657. He was chosen to become Pope after the deposition and banishment of Martin I by Emperor Constans II over the dispute about Monothelitism.

501–608 · Medieval

Eulogius of Alexandria (Ancient Greek: Εὐλόγιος) was Greek Patriarch of that see from about 580 to 608. He is regarded as a saint, with a feast day of September 13. Eulogius was first igumen of the monastery of the Mother of God in Antioch.

1251–1322 · Medieval · Franciscans

Francesco da Fabriano (2 September 1251 - 22 April 1322) - born Francesco Venimbeni - was an Italian Roman Catholic professed member from the Order of Friars Minor.

423–502 · Medieval

Genevieve was a consecrated virgin, and is one of the two patron saints of Paris in the Catholic Church and Eastern Orthodox Church. Her feast day is on 3 January.

496–576 · Medieval · Benedictines

Germain (Latin: Germanus; c. 496 – 28 May 576) was the bishop of Paris and is venerated as a saint in both the Catholic Church and the Eastern Orthodox Church. According to an early biography, he was known as Germain d'Autun, rendered in modern times as the "Father of the Poor".

650–733 · Medieval

Germanus I of Constantinople (Latin: Germanus, Greek: Γερμανός; c. 634 – 740) was the Ecumenical Patriarch of Constantinople from 715 to 730. He is regarded as a saint by both the Orthodox and Catholic Churches, with a feast day of 12 May.

1043–1066 · Medieval

Gottschalk, sometimes rendered as Godescalc (Latin: Godescalcus; died 7 June 1066), was a prince of the Obotrite confederacy from 1043 to 1066. He established a Polabian Slavic kingdom on the Elbe (in the area of present-day northeastern Germany) in the mid-11th century.

1084–1158 · Medieval · Q18924329

Guarino Foscari (c. 1080 - 6 February 1158) was an Italian Catholic Augustinian canon regular and also the Cardinal-Bishop of Palestrina from December 1144 after his relative Pope Lucius II elevated him into the cardinalate.

500–544 · Medieval

Wenna (Welsh: Gwen) was a medieval princess and Christian martyr who flourished in Wales and Cornwall. Later venerated as a saint, she is honoured at multiple churches in Cornwall and Devon.

530 · Medieval

Saint Gwenfyl was an early Welsh Christian saint from the Brychan family. Little is known of her life. Saint Gwenfyl was one of the children or descendants of Brychan.

1020–1043 · Medieval

Hallvard Vebjørnsson (Hallvard Den Hellige) (c. 1020–1043), commonly referred to as Saint Hallvard (Sankt Hallvard), is the patron saint of Oslo. He is considered a martyr because of his defence of an innocent thrall woman. His religious feast day is 15 May.

911–986 · Medieval

Harald "Bluetooth" Gormsson (Old Norse: Haraldr Blátǫnn Gormsson; Danish: Harald Blåtand Gormsen, died c. 985/86) was a king of Denmark and Norway. The son of King Gorm the Old and Thyra Dannebod, Harald ruled as king of Denmark from c. 958 – c.

1040–1074 · Medieval · Benedictines

Herman I of Baden (c. 1040 – April 25, 1074 in Cluny) was the titular Margrave of Verona and the agnatic ancestor of the Margraves of Baden. Herman was born in Freiburg im Breisgau as the eldest son of Berthold I of Zähringen.

1013–1054 · Medieval · Benedictines

Blessed Hermann of Reichenau or Herman the Cripple (18 July 1013 – 24 September 1054), also known by other names, was an 11th-century Benedictine monk and scholar. He composed works on history, music theory, mathematics, and astronomy, as well as many hymns.

614–680 · Medieval · Benedictines

Hilda of Whitby (or Hild; c. 614 – 680) was a saint of the early Church in Britain. She was the founder and first abbess of the monastery at Whitby which was chosen as the venue for the Synod of Whitby in 664.

1190–1277 · Medieval · Dominican Order

Humbert of Romans, OP (c. 1190-1200, Romans-sur-Isère – 14 July 1277, Valence, Drôme, France) was a French Dominican friar who served as the fifth Master General of the Order of Preachers from 1254 to 1263. Humbert was born at Romans-sur-Isère around 1194.