Breton hermit. He was reputedly a native of Britain who settled on land at Duault, near Carhaix, where, the local tradition says, a stag took refuge and hounds did not dare attack it. Ernin died and was buried at Locarn. Count Conmore (later of Domnonia) ordered a chapel to be built there; this was on the site of the present church at Locarn where Ernin's head and arm are enshrined. Invoked as a patron to cure headaches, his feast is on 2 November. It is possible, but not certain, that the two Ernins are really one and the same.
Baring-Gould and Fisher, ii. 464–5.