 His main source appears to have been a "Life" originating in Féchín's monastery on Omey Island.The Irish "Life" ("Betha Féchín Fabair" "The Life of St Féchín of Fore") was written down by Nicol Óg, son of the abbot of Cong, in 1328 and it seems that parts of it go back to even earlier (Latin) sources.The text may be seen as a combination of two texts.