St Cadou was an early Christian in Brittany in France, not be confused with St Cadoc. He was venerated as a saint after his death, with his cult centered on the Ile de Cadou. Sources Strayner, Joseph R., ed. Dictionary of the Middle Ages (New York: Charles Scribner's Sons, 1983) p. 7. Christian saints in unknown century Medieval Breton saints Year of birth unknown