Hagiographer in the context of "Martin of Tours"

Adomnán or Adamnán of Iona (Old Irish: [ˈaðəβ̃ˌnaːn]; Latin: Adamnanus, Adomnanus; c. 624 – 704), also known as Eunan (/ˈjuːnən/ YOO-nən; from Naomh Adhamhnán), was an abbot of Iona Abbey (r. 679–704), hagiographer, statesman, canon jurist, and saint. He was the author of the Life of Columba (Latin: Vita Columbae), probably written between 697 and 700. This biography is by far the most important surviving work written in early-medieval Scotland, and is a vital source for our knowledge of the Picts, and an insight into the life of Iona and the early-medieval Gaelic monk.

Adomnán promulgated the Law of Adomnán or "Law of Innocents" (Latin: Lex Innocentium). He also wrote the treatise De Locis Sanctis ('On Holy Places'), an account of the great Christian holy places and centres of pilgrimage. Adomnán got much of his information from a Frankish bishop called Arculf, who had personally visited Egypt, Rome, Constantinople and the Holy Land, and visited Iona afterwards.

Hucbald (c. 840 or 850 – 20 June 930; also Hucbaldus or Hubaldus) was a Benedictine monk active as a music theorist, poet, composer, teacher, and hagiographer. He was long associated with Saint-Amand Abbey, so is often known as Hucbald of St Amand. Deeply influenced by Boethius' De Institutione Musica, Hucbald's (De) Musica, formerly known as De harmonica institutione, aims to reconcile ancient Greek music theory and the contemporary practice of Gregorian chant with the use of many notated examples. Among the leading music theorists of the Carolingian era, he was likely a near contemporary of Aurelian of Réôme, the unknown author of the Musica enchiriadis, and the anonymous authors of other music theory texts Commemoratio brevis, Alia musica, and De modis.

Osbern of Canterbury or Monk Osbern (c. 1050 – c. 1095) was a Benedictine monk, hagiographer and musician, precentor of Christ Church, Canterbury.