Carthach the Elder

Holy Hierarch Carthach the Elder was an Irish bishop and abbot of the sixth century, a disciple of Saint Ciaran of Saighir and his successor as Bishop of Ossory. He was the tutor and foster-⁠father of Saint Carthage of Lismore (Mochuda). He belonged to the Eóganacht Chaisil. Ciaran sent him on a penitential pilgrimage, during which he spent seven years abroad, visiting Gaul and Rome. He reposed around the year 540. He is venerated as a saint of the undivided Church and is commemorated on 5 March (new calendar).