The form of government among the Straith-Cluid Britons and the Cumbrians, the latter inhabiting the country from the Picts' wall, to the Ribble in Lancashire, was in part aristocratical; for many petty lords or princes enjoyed so great authority in their respective territories, as often to wage war among themselves: yet they all obeyed one monarch, who usually resided at Alcluyd, or Dunbritton. Besides the feuds and quarrels of particular chieftains and their clans, there happened about that time several revolutions in the monarchy. We learn from the book entitled the Triades, that when St. Kentigern was made bishop of Glasco, Gurthmel Wledig was king of the North Britons, and contemporary with Arthur. He was succeeded by Rydderch, surnamed Hael, i.e. _The Liberal_, who vanquished his enemies and rivals in war, especially by the great victory of Arderyth, in 577.[1] He was a religious and deserving prince, and his magnificence, generosity, and other virtues, are extolled by the ancient author of the Triades, by Merlin, Taliessin, the old laws of the Britons, and the authors of the lives of St. Kentigern and St. Asaph. This prince, however, was afterwards obliged by rebellious subjects, under Morcant Mawr, and Aeddon, surnamed Uraydog, or _The Treacherous_, to fly into Ireland. The impious Morcant (as he is styled in the fragment of St. Asaph's life, extant in Coch-Asaph) usurped the throne of the Straith-Cluid Britons; but the Cumbrians, who dwelt on the south side of the wall, were protected by Urien, lord of Rheged, a nobleman who had lived at the court of king Arthur, and whose great qualities are celebrated by the pens of Lhowarch-Hen, (his cousin-german,) Taliessin, and the author of the Triades. In the beginning of the usurpation of Morcant Mawr, St. Kentigern was obliged to fly into Wales, where he stayed some time with St. David, at Menevia, {139} till Cathwallain, (uncle to king Maelgun Gwynedh,[2]) a religious prince of part of Denbighshire, bestowed on him the land at the meeting of the rivers Elwy and Cluid, on which he built a famous monastery and school, called from the river Elwy, Llan-Elwy, or absolutely Elgwy, where a great number of disciples and scholars soon put themselves under his direction. St. Kentigern was here when St. David died, in 546, or rather in 544, when the first of March fell on a Tuesday.[3] After the death of the usurper Morcant, Rydderch returned from Ireland, and recovered his crown, and St. Kentigern, leaving his school to the care of St. Asaph, (whose name the town, which was raised at Elgwy, bears to this day,) went back to Glasco, taking with him several hundreds of his scholars; their number having probably been much increased after the death of Daniel, bishop of Bangor, which happened between the years 542 and 545. The return of St. Kentigern to his see, is generally placed about the year 560, nor can it be placed later, since in 565 he had a conference with St. Columbo, when that holy man