St. Constantine of Cornwall
source: orthodoxwiki Saint Constantine of Cornwall, also Constantine of Dumnonia, Constantine III of Britain, Saint Custennin, Custennin ap Cado, Custennin ap Cadwr, Costentyn or Constantine of Govan (ca. 520-576 AD) is a 6th-century Cornish saint that is identified with a minor British king Constantine, who came to repentance at St Davids monastery…