A coin of Valentinian was discovered in the Cam valley in 1890. On the reverse is a Latin Cross surrounded by a laurel wreath.
Cymry signifies confederate, and was the name (quite probably an older racial appellation revived) adopted by the Western Britons in their resistance to the Saxon advance.
Arthur is first mentioned (in Nennius and the 'Life of Gildas') as a Damnonian "tyrant" (i.e. a popular leader with no constitutional status), fighting against "the kings of Kent." This notice must be very early—before the West Saxons came in between Devon and the Kentish Jutes. His early date is confirmed by his mythical exploits being located in every Cymric region—Cornwall, Wales, Strathclyde, and even Brittany.