Saint Carantoc Meets King Arthur
A native of Wales, Carantoc is said to have become a monk at an early age. For a time, he lived in Ireland, preaching the faith there.
In his missionary labors, he was accompanied by a white dove that the people took to be an angel in visible form. This gentle creature remained with Carantoc after he returned to his native Wales. When Carantoc attempted to settle in a cave, the dove indicated by fluttering back and forth that it wanted to lead him elsewhere.
Carantoc followed the bird through the forest to a place of level ground, where the dove settled down. The monk chose this spot to build a church, a place later known as Llangrannog.
He subsequently established a monastery at a place called Cernach, governing it as abbot. Carantoc also traveled to Brittany. 
A legend connects Carantoc with King Arthur, claiming that the abbot subdued a large serpent by throwing his stole around its neck. He then led the vanquished beast to the court of King Arthur, where it freed it after commanding it to never harm people and livestock again.
