Commemorated on March 5
The "first born of the saints of Ireland," sometimes listed as Kieran Saighir or Kevin the Elder. He was a native of Ossory, and after living for a time as a hermit, he is believed to have been consecrated a bishop by St. Patrick, taking his place as the first bishop of Ossory. Another tradition states that he was consecrated in Rome. Legends attribute remarkable miracles to Kieran.
"Cieran" redirects here. For the Irish given name, see Ciarán. For the 6th-century abbot of Clonmacnoise, see Ciarán of Clonmacnoise.
Ciarán of Saigir (5th century – c. 530), also known as Ciarán mac Luaigne or Saint Kieran (Welsh: Cieran), was one of the Twelve Apostles of Ireland and is considered the first saint to have been born in Ireland, although the legend that he preceded Saint Patrick is questionable. Ciarán was bishop of Saighir (Seir-Kieran) and remains the patron saint of its successor, the diocese of Ossory.
His feast day is celebrated on 5 March. He is sometimes called Saint Ciarán the Elder (Latin: Kyaranus or Ciaranus Maior) to distinguish him from the other 6th-century Irish Saint Ciarán, who was abbot of Clonmacnoise. He shares the feast date of 5 March with his mother, St. Liadán, and his disciple and episcopal successor, St. Carthach the Elder