Corbmac (or Cormac) is the name of some forty-eight early Irish saints, of which we here present the best authenticated:
1. Priest in Achadh-finnich, commemorated May 11, according to the Mart. Doneg. (Todd and Reeves, page 125). Colgan mentions a king by this name, son of Diarmaid, who turned monk in his old age, and like wise gives two Cormacs, priests, venerated on the above day (Acta Sanctorum, page 360, a).
2. Of Armagh, venerated February 17, seems to have been born near Mt. Usneach, and was baptized by St. Patrick. His father is said to have been Enna (Ennius or Enda), and he was coarb or abbot of Armagh, A.D. 482- 497.
3. Of Trim (then Ath-truim), likewise venerated February 17, seems to have been descended from the same family as the preceding, his mother being Funecta (Fuineacht), his brothers also bishops of adjoining sees, and his father's name Colman. He died A.D. 742.
4. Called Ua Liathain, abbot of Dermagh (now Durrow), and venerated June 21, was the son of Dima, and is surnamed "Corbmac the Navigator," from his voyages in the Northern Ocean. He afterwards founded a monastery in his own country, but there is no clue to his exact date.
Another anchorite of the same name is assigned to A.D. 865, but is otherwise unknown.
5. Of Munster, commemorated December 14 (some erroneously March 26), was the son of Eugenius, and had several brothers who were saints. He retired to one place of solitude after another, and finally settled in a monastery at Mayo, on the Moy, probably about the middle of the 6th century.