It is traditionally believed that a monastic settlement was founded here in the fifth century by St. Patrick who installed Dabheoc as the first abbot. There are forty-six islands in Lough Derg but only two of them are of archaeological interest. The…
A description of the lake taken from O'Connor's account of an 1836 story in the Dublin Penny Journal Count Raymond de Perilleaux's 1397 journey to the Purgatory
