"These four battles were fought upon the river Douglas, and in the region Linuis. In this district was the whole course of the current from its source to the conclusion, and the words, '_Super flumen quod vocatur Duglas, quod est in Linuis_,' shows the stream to have been less known than the region. This was therefore considerable; one of the cantreds or great divisions of the Sistuntian kingdom, and comprised, perhaps, the western half of South Lancashire. From its appellation of Linuis or the Lake, it seems to have assumed the denomination from the Mere of Marton," [Martin] "which was once the most considerable object in it." The Rev. R. W. Morgan, in his "Cambrian History," locates the Arthurian victories as follows:--"1st, at Gloster; 2nd, at Wigan (The Combats), 10 miles from the Mersey. The battle lasted through the night. In A.D. 1780, on cutting through the tunnel, three cart loads of horse-shoes were found and removed; 3rd, at Blackrode; 4th, at Penrith, between the Loder and Elmot, on the spot still called King Arthur's Castle; 5th, on the Douglas, in Douglas Vale; 6th, at Lincoln; 7th, on the edge of the Forest of Celidon (Ettrick Forest) at Melrose; 8th, at Cær Gwynion; 9th, between Edinburgh and Leith; 10th, at Dumbarton; 11th, at Brixham, Torbay; 12th, at Mont Baden, above Bath." Geoffrey of Monmouth refers but to one battle on the banks of the "Duglas." This he fixes at about the year 500. He tells us that "the Saxons had invited over their countrymen from Germany, and, under the command of Colgrin, were attempting to exterminate the whole British race.... Hereupon, assembling the youth under his command, he marched to" [towards] "York, of which when Colgrin had intelligence, he met him with a very great army, composed of Saxons, Scots, and Picts, by the river Duglas, where a battle happened, with the loss of the greater part of both armies. Notwithstanding, the victory fell to Arthur, who pursued Colgrin to York, and there besieged him."