Linnuis conceivably provides better clues, as it is an extension of the Roman Lindum, which is now Lincoln. A branch of the Medway River, the Kent, was called “Le Black” for hundreds of years and was probably called that in Arthur’s time. Dubglas can be translated as “black water,” a common name in those days and today. The Dubglas River and Linnuis are more problematic.

The River Glein is thought to be the River Glen, of which Britain has two today–one in Lincolnshire and one in Northumberland. In all these engagements the Britons were successful.” In this engagement, nine hundred and forty fell by his hand alone, no one but the Lord affording him assistance. The twelfth was a most severe contest, when Arthur penetrated to the hill of Badon. The eleventh battle was fought on the hill called Agned. He fought the tenth battle on the shore of the river called Tribruit. The ninth battle was fought in the city of the Legion. The eighth battle was near the fort Guinnion, where Arthur bore the image of the Holy Virgin, mother of God, upon his shoulders, and through the power of our Lord Jesus Christ, and the holy Mary, put the Saxons to flight, and pursued them whole day with great slaughter. The seventh battle was in the forest of Celidon, that is Cat Coit Celidon. The sixth battle on the river which is called Bassas.

The second and third and fourth and fifth on another river which is called Dubglas and is in the region Linnuis. The first battle was in the mouth of the river which is called Glein. And though there were many more noble than himself, yet he was twelve times chosen their commander, and was as often conqueror. Nennius and Arthur’s 12 Battles”Then it was, that the magnanimous Arthur, with all the kings and military force of Britain, fought against the Saxons. Historians, in trying to pinpoint the sites of these battles, have taken great pains to apply the site-names to places of the country in which they want Arthur to have been located this has given rise, in part, to the rival claims that punctuate the Matter of Britain

It soon reaches the Roman emperors who ruled over Britain, then glides backward again to recount the “finding” of Britain by Brutus the Trojan dux bellorum in 12 great victories over the Saxons. This History of the Britons goes back to the very beginning with a short course on human genealogy, starting with Adam. 830), a monk named Nennius wrote the Historia Brittonum. Sometime in the 9th century (most scholars say c.