Saint Blathmac (Latin: Blathmacus, Florentius) was a distinguished Irish monk, born in Ireland about 750 AD.
Strabo describes him as a warrior prince, and "a future king of his people" who gave up his patrimony to enter religious life.
He became the abbot of an Irish monastery, and in 824 left to join the community of monks at Iona which traced itself to Columba.
[5] He was serving as prior or acting abbot in the absence of Diarmait of Iona, who had taken most of the community to Kells for safety.
Blathmac refused to point out the relics or the Brecbannoch of St Columba, which were the object of plunder.