Posted on May 17, 2024 by Padraic GuilfoyleTrinity Island Priory was built in 1237 by the Archdeacon of Elphin close to Clough Oughter Castle in Lough Oughter at Killeshandra, Co Cavan. Trinity Abbey, Trinity Island, Co Cavan Share this:TwitterEmailPrintRedditTumblrFacebookPinterestLinkedInLike Loading...