The Twelve Apostles of Ireland (also known as Twelve Apostles of Erin, were twelve early Irish monastic saints of the sixth century who studied under St Finian (d. 549) at his famous monastic school Clonard Abbey at Cluain-Eraird (Eraird's Meadow), now Clonard in County Meath. The Twelve Apostles are Saint Ciarán of Saighir (Seir-Kieran). In the Martyrology of Oengus, saint Ciarán of...