Taken from "The Flame-Bearers of Welsh History"
continued from Einion Yrth
But to save Einion from doing all the fighting himself, there was the last son of Cunedda, Osmael.
Surely Osmael must have been the son his father loved the most.  For he asked for no proud old city like Chester to be his portion.  He did not need any vast fortification to be his defence, like the Wall in the far north.  Sword in hand he plunged into the thick of the Scots of Mon and Arvon, to cut off Vortigern's armies at the point where the fleets came to land when they brought fresh armies of Scots from Erin.  Osmael his father had named him, but you will not find it written in any of the pedigrees of the four old fighting clans descended from him.  Two of those clans, at different times afterwards, were appointed champions and bodyguards of the Kings of Cymru, 'for their splendidness and their bravery,' but they trace their descent from Gwron.  For thus was Osmael known to his brothers and descendants - 'Gwron' - the Hero.  A proud man he may be who traces his descent from such a man.
He fell beneath the javelins in old Mon of the Druids, as we may well believe.  For in that isle, where his descendants had their portion, there was a spot called Maes Osmelion - the Field of the Descendants of Osmael.  And so sacred was that spot that when four hundred years afterwards, the chronicler wished to say that a certain invader had conquered Mon for a moment, he simply stated that "Igmunt...held Maes Osmelion.'
Two of his sons have left their names to portions of that sweet north-western isle, Neigr in Rhos Neigr, and Meilir in Rhos Meilir. Can any of you, reading this story in old Mon, tell us where the third one, Cynyr, has left his name, or where the name of Maes Osmelion still lingers?
Thus Cunedda seized the office of Dux Britanniarum, or Duke of Britain.  Thus he kept it, having his royal court at Carlisle on the Southern Wall, and his sons keeping his frontiers.  All the old splendour of the Ruler of Britain was seen again.