(ISBN 2-87285-050-3), p. 44. Walter, Philippe (1 January 2015). Dictionnaire de mythologie arthurienne. Editions Imago. ISBN 9782849528501. Archived from the original...

("Duke of Britannia") introduced by the Romans. John Morris suspects that Coel Hen who, according to a Welsh tradition, was the ancestor of all Celto-British...