“Donnan, of Ega, Abbott. Ega [Eigg] is the name of an island in which he was, after his coming from Erin [Ireland]. And there came robbers of the sea on a certain time to the island when he was celebrating mass. He requested of them not to kill him until he should have the mass said, and they gave him this respite; and he was afterwards beheaded and fifty-two of his monks along with him. And all their names are in a certain old book of the old books of Erin, A.D.617.
Martyrology of Donegal