英国日不落的那断殖民历史

After the gradual withdrawal of Roman troops from Britain in the last decades of the 4th century, several generals rose to power as Emperors over the mainland British. Legend, particularly perpetrated by Geoffrey of Monmouth, states that the British people looked to their cousins in Brittany for such leadership. King Aldrien of Brittany declined the British High-Throne, but offered up his young brother, Constantine in his stead. Constantine landed in Britain with 2000 men and overcame the barbarians already invading the Island's shores to become High-King as Constantine Waredwr (the Deliverer).

Constantine has been variously identified with one of several near contemporary men of this name appearing in ancient Welsh Royal pedigrees: the Galfridian brother of King Aldrien of Brittany, a son of the Emperor Magnus Maximus or a King of Dumnonia in South-Western Britain. The latter is perhaps the most popular, yet also the most unlikely and based on his supposed grandson