Catald was a 7th-century Irish monk and bishop who originally studied at the School of Lismore in County Waterford. After traveling to Jerusalem on a pilgrimage, his return journey was interrupted when his vessel was wrecked near the Italian coast. Settling in the vicinity of Taranto, he eventually accepted leadership of the local church. He is recognized as a saint within the Catholic tradition and is celebrated for his spiritual influence in the region where he died.