St Moluag was born in Ireland and trained at the monastery of Bangor under St Comgall; he was also a contemporary of St Columba. He evangelised in western Scotland using the island of Lismore near Oban as a base. Permission was granted by King Brude of the Picts with the help of St Comgall. Basides Lismore he made two other centres, one on the eastern seaboard at Rosemarkie, on the Black Island above Inverness, and the other at Mortlach now called Dufftown in Moray.
St Moluagh’s church still survives as a parish church at Europie in north Lewis, Outer Hebrides, though there are no services in winter because it is so cold. St Ronan is said to have lived here before he went to St Ronan’s isle.
St Moluagh’s ministry was very fruitful: he planted Cill Moluagh on Mull, Cill Moluagh on Skye, Cill Moluagh on Raasay, Cill Moluagh on Tiree and Pabay (‘the isle of the papa’) His crozier, ‘the great staff’ is preserved in private hands on Lismore