 One of the earliest churches in Sligo, it was founded by Bishop Brón mac Icni (d. 512) a contemporary of St. Patrick.This church was a major pilgrimage site that contained the relic of St. Patrick known as the Fiacail Pádraig, now in the National Museum.According to Patricks biographer Tirechán in his Collectanea, Patrick prophesied that the sea would force his heirs to move closer to the river Sligo, now the Garavoge (see Sligo).