9th-century Irish writers

Irish Catholic philosopher and theologian (c. 800 – c. 877)

Irish teacher, Latin grammarian and scriptural commentator

Dungal (fl. 811–828) was an Irish monk, teacher, astronomer, and poet. He was to live at Saint-Denis, Pavia, and Bobbio.

Irish teacher, poet, Bishop of Fiesole and saint

Irish bishop, reformer and writer

Irish writer and historian

thumb|upright|Stained glass window in the sanctuary of St Patrick's Cathedral, Armagh (Church of Ireland)|St. Patrick's Cathedral in Armagh, depicting Ferdomnach Ferdomnach (died 846) was an Irish illuminator who is responsible for the Book of Armagh.