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1050–1159 · Medieval

Constantine I (27 February 272 – 22 May 337), also known as Constantine the Great, or known mononymously as Constantine, was Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity.

1000–1063 · Medieval

Constantine III of Constantinople (Greek: Κωνσταντίνος Γʹ Λειχούδης; died 9 or 10 August 1063) was the Ecumenical Patriarch of Constantinople from 1059 until his death in 1063. Born in Constantinople, he was a fellow student of Michael Psellus and John Xiphilinus.

570–640 · Medieval

Constantine was reputedly the son and successor of King Riderch Hael of Alt Clut, the Brittonic kingdom later known as Strathclyde. (The modern English name of Alt Clut is Dumbarton Rock.) He appears only in the Life of St.

850 · Medieval

Constantine the Jew (c. 850 – 26 December, after 886) was a Byzantine Christian monk and evangelist venerated as a saint within his monastic milieu and in Constantinople. Born to a Jewish family in Synada, Constantine excelled at Hebrew and the Old Testament from a young age.

570 · Medieval

Saint Constantius of Aquino (Italian: Costanzo di Aquino) (6th century) was a bishop of Aquino in Italy, noted for his gift of prophecy, and a saint. He is commemorated in the Roman Martyrology on Sept. 1.

601–700 · Medieval

Constantius (born, Antonii de Ripolis; Italian, San Costanzo di Capri) (died 7th or 8th century, near Marina Grande) was a Bishop of the Catholic Church who, after many years wandering, became the patron saint of Capri.

630 · Medieval

Saint Conval (Conwall) (died c.630) was an Irish-born missionary who, according to legend recorded in the Aberdeen Breviary, as he was praying on the sea shore "to be borne, by whatsoever means, to the regions beyond the sea", was miraculously carried by the stone he stood on acr…

800–868 · Medieval · Benedictines

Saint Conwoïon (or Convoyon or Konvoion) was a Breton saint and abbot. He was probably born around 800 at Comblessac (Ille-et-Vilaine) into a Gallo-Roman family descended, or claiming descent, from Roman senators ("ex genere senatorio").

675–730 · Medieval

Saint Corbinian (Latin: Corbinianus; French: Corbinien; German: Korbinian; c. 670 – 8 September c. 730) was a Frankish bishop. After living as a hermit near Chartres for fourteen years, he made a pilgrimage to Rome. Pope Gregory II sent him to Bavaria.

836–908 · Medieval

Cormac mac Cuilennáin (831 A.D. - 13 September 908) was an Irish bishop and the king of Munster from 902 until his death at the Battle of Bellaghmoon. He was killed in Leinster.

800–900 · Medieval

Saint Corona d'Elx was born in Elche in 800 and died in 900. She is recognized as a saint.

1050 · Medieval

Cosmas I of Constantinople (Greek: Κοσμᾶς Α΄; died c. 1082), also referred to as Cosmas the Jerusalemite in Greek (Κοσμάς Ιεροσολυμίτης) was Ecumenical Patriarch of Constantinople from 2 August 1075 to 8 May 1081.

706–760 · Medieval

Cosmas of Maiuma, also called Cosmas Hagiopolites ("of the Holy City"), Cosmas of Jerusalem, Cosmas the Melodist, or Cosmas the Poet (d. 773 or 794), was a bishop and an important hymnographer in the East.

520–576 · Medieval

Costantino is both a masculine Italian given name and an Italian surname. Notable people with the name include:

1066–1151 · Medieval

Saint Costanzo di Niardo was born in 1066 in Niardo. He died in 1151 in Nave.

780 · Medieval

Saint Credan of Evesham (died 19 August 780) is a saint in the calendar of the Roman Catholic Church and of the Eastern Orthodox Church. He is also known in Latin as Credus or Credanus.

550 · Medieval

Cristiolus was a Welsh saint who lived in the 6th century. According to tradition, he was a son of Hywel, son of Emyr Llydaw and therefore brother to Saint Sulien, Saint Rhystud and Derfel Gadarn, and perhaps also Dwywe (or Dwywau).

590 · Medieval

Saint Cuimín (also Cummin, etc.) is an Irish saint associated with the parish of Kilcummin (Irish: Cill Chuimín "The church of Cuimín") in the barony of Tirawley, County Mayo.

640–730 · Medieval

Cumianus (c. 641 – c. 736) was an Irish monk who became abbot of San Colombano di Bobbio around 715. He left Ireland as an old man. The intricately carved lid of his sarcophagus, containing a lengthy epitaph, was made by one Master John and commissioned by King Liutprand, King of…

590–663 · Medieval

Cunibert, Cunipert, or Kunibert (c. 600 – 12 November c. 663) was the ninth bishop of Cologne, from 623 to his death. Contemporary sources mention him between 627 and 643.

978–1039 · Medieval · Benedictines

Cunigunde of Luxembourg, OSB (German: Kunigunde) (c. 975 – 3 March 1040), also called Cunegundes, Cunegunda, and Cunegonda and, in Latin, Cunegundis or Kinigundis, was Empress of the Holy Roman Empire by marriage to Holy Roman Emperor Henry II.

600 · Medieval

St Curig was a Celtic bishop and saint of Wales during post Roman times. St Curig settled in Wales in the 7th century AD, during the reign of Maelgwn Gwynedd, for whom he was described as being a warrior.

635–687 · Medieval · Benedictines

Cuthbert (c. 634 – 20 March 687) was a saint of the early Northumbrian church in the Celtic tradition. He was a monk, bishop and hermit, associated with the monasteries of Melrose and Lindisfarne in the Kingdom of Northumbria, today in north-eastern England and south-eastern Scot…

700–760 · Medieval

Cuthbert (Old English: Cūþbeorht, Latin: Cuthbertus; died 26 October 760) was a medieval Anglo-Saxon Archbishop of Canterbury in England. Prior to his elevation to Canterbury, he was abbot of a monastic house, and perhaps may have been Bishop of Hereford also, but evidence for hi…

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.

601–710 · Medieval

Cwenburh of Wimborne was an 8th-century Anglo-Saxon saint, a sister of King Ine of Wessex and of Saint Cuthburh. Her sister Cuthburh was married to King Aldfrith of Northumbria and then became the first abbess of Wimborne monastery.

550 · Medieval

Saint Cwyllog (or Cywyllog) was a Christian holy woman who was active in Anglesey, Wales, in the early 6th century. The daughter, sister and niece of saints, she is said to have founded St Cwyllog's Church, Llangwyllog, in the middle of Anglesey, where a church is still dedicated…

483–555 · Medieval

Saint Cybi (Welsh), or Cuby (Cornish), was a 6th-century Cornish bishop, saint, and, briefly, king, who worked largely in Cornwall and North Wales: his biography is recorded in two slightly variant medieval 'lives'.

490–501 · Medieval

Saint Cyngar was a 5th-century Welsh Saint. He is the Patron Saint of Llangefni, Anglesey, in Wales, and a founding member of St. Cybi's Monastery at Holyhead, Anglesey. Born around 488 AD, he was the son of King Gerren Llyngesog of Dumnonia.

700 · Medieval

Cynhaiarn was a 5th-century Pre-Congregational saint of Wales, and the brother of Aelhaiarn. Very little is known of his life, other than he was a prince of the Powysian dynasty descended from Vortigern, king of Britain, and brother of Llwchaiarn and Aelhaiarn.

501 · Medieval

St Cynidr was a 6th-century Catholic pre-congregational saint of South Wales and first bishop of Glasbury, Powys. Cynidr is buried in Glasbury, where he is venerated with a feast day of 27 April.

586 · Medieval

Cyprian of Genouillac (died 586) was a French monk who became abbot of Genouillac, renowned for his service to the sick and for miracles as recounted by Gregory of Tours. He has been venerated as a saint since ancient times. His feast day is celebrated on December 9.

476–546 · Medieval

Saint Cyprian of Toulon (Cyprianus Tolonensis; 476 – October 3, 546) was bishop of Toulon during the 6th century. Born at Marseille, he was the favorite pupil of St. Caesarius of Arles by whom he was trained.

1336–1406 · Medieval

Cyprian (c. 1336 – 16 September 1406) was a prelate of Bulgarian origin, who served as the Metropolitan of Kiev, Rus' and Lithuania (2 December 1375 – 12 February 1376) and the Metropolitan of Kiev and all Rus' (12 February 1376 – 16 September 1406) in the Ecumenical Patriarchate…

582 · Medieval

Cyprianus of Brescia served as a presbyter and bishop. He died in 582 and is recognized as a saint.

1015–1110 · Medieval

Cyril of Philea or Phileotes (Greek: Κύριλλος ὁ Φιλεώτης; c. 1015 – 2 December 1110) was a Byzantine ascetic and saint. Cyril was born in the village of Philea, near Derkos, around 1015. 'Cyril' is his monastic name, his birth name is unknown.

1126–1235 · Medieval · Carmelites

Cyril of Constantinople (d. c. 1235) was reputed to have been a Prior General of the Order of Carmelites and prior of the hermits on Mount Carmel for three years. He is said to have had the gift of prophecy.

1130–1182 · Medieval

Cyril of Turov, alternately Kirill of Turov (Church Slavonic: Кѷриллъ Туровськiй, romanized: Kürīllǔ Turovsǐkij, Belarusian: Кірыла Тураўскі, romanized: Kiryła Turawski, Russian: Кири́лл Ту́ровский, romanized: Kirill Turovskiy; 1130–1182) was a bishop and saint of the Russian Ort…

600 · Medieval

Cywair (born c. 455) was a saint and Queen of the Pennines. Her feast day is July 14. Saint Cywair, Queen of the Pennines, was the wife of Arthuis ap Mor and the mother of Saint Pabo the Pillar of Britain.

450–552 · Medieval

Dacius or Datius (Italian: Dazio) was Bishop of Milan from c. 530 to 552. He is honoured as a saint in the Catholic Church and in the Orthodox Church.

652–679 · Medieval

Dagobert II (Latin: Dagober(c)tus; Old English: Dægberht; died 679) was a Merovingian king of the Franks, ruling in Austrasia from 675 or 676 until his death. He is one of the more obscure Merovingians. He has been considered a martyr since at least the ninth century.

588 · Medieval

Saint Daig (died 588?) was an Irish Christian bishop and confessor of Inis-Caoin-Deagha (now Inniskeen, County Monaghan), who lived towards the end of the 6th century. His name in Gaelic means "A great flame" and he was probably named after his mother Deighe.

530–598 · Medieval

Eochaid mac Colla (c. 560 – 640), better known as Saint Dallán or Dallán Forgaill (Old Irish: Dallán Forchella; Latin: Dallanus Forcellius; Primitive Irish: Dallagnas Worgēllas), was an early Christian Irish poet and saint known as the writer of the "Amra Coluim Chille" ("Elegy o…

601–710 · Medieval

Damian of Pavia (also Damianus Ticinensis, Damianus Mediolanensis, Damianus Biscossia) was Bishop of Pavia (Ticinum) from 680, succeeding bishop Anastasius. He mediated relations between the Lombards and the Byzantine emperors.

100–1000 · Medieval

Danax (Vlora – Montesardo, a frazione of Alessano) was a reader and deacon who died a martyr in the 2nd, 4th, or 9th century in Illyria or Italy, depending on the version. He is commemorated by the Catholic Church and the Orthodox Church on January 16.

888 · Medieval

Daniel of Arles or of Girona (Armenia, 9th century – Arles, 888) was a Christian martyr venerated as a saint in Girona. He is likely a legendary saint.

1261–1303 · Medieval

Daniil Aleksandrovich (Russian: Даниил Александрович; 1261 – 5 March 1303), also known as Daniil of Moscow, was the youngest son of Alexander Nevsky and forefather of all Princes of Moscow. His descendants are known as the Daniilovichi.

1150–1227 · Medieval · Franciscans

Daniel Fasanella, born in Belvedere Marittimo, Kingdom of Sicily, at an unknown date and martyred in Ceuta, Almohad Empire, on October 10, 1227, was a 13th-century Sicilian Franciscan who died a martyr alongside six other Franciscan companions.

1400–1496 · Medieval

Daniil Sihastrul (Romanian for "Daniel the Hesychast") (died 1496) was a renowned Moldavan Orthodox spiritual guide, advisor of Stephen the Great, and hegumen of Voroneț Monastery. Canonized by the Romanian Orthodox Church in 1992, he is commemorated on December 18.

520 · Medieval

Dar Lugdach (also Darlugdach died c. 525/527) was the immediate successor of Brigid of Kildare as abbess of Kildare, and is recognised as a saint. She is recorded as having died one year to the day after Brigid, and shares the same feast day as the more famous abbess.