Virtually nothing is known of his life. William Worcestre called him a hermit, son of a king of Ireland, whose body lay in a shrine in the church of Cardyngham (Cornwall). His companion in the hermit life was called Manaccus. Cardyngham church is still dedicated to him; he is figured in a stained-glass window at St Neot, made in 1529. William Worcestre says his feast was kept on the Thursday before Whitsun; he has no day in the Cornish Church calendar.
William Worcestre, pp. 97–9;G. H. Doble, History of the Church and Parish of St Mewbred, Cardyngham (1939).