The sanctuary of the saint was established at Euchaita, possibly his birthplace, and legends of his life and martyrdom have been developed by hagiographers over the years. Later additions to the story, between the 8th and 10th centuries, told of a dragon who was terrorising the district round Amasea, which he was able to vanquish with the aid of a cross. Amasea was by then in a district liable to attacks by marauding barbarians, against whom the saint was said to have interceded. His sanctuary continued to be visited until around 1100, although the district was by then occupied by the Arabs.