{40a} Dinefwr, the name of the prince of South Wales’s palace, pleasantly situated upon a hill above the river Towy, in Carmarthenshire, now in the possession of George Rice, of Newton, Esquire, member of parliament for that county. {40b} Mathrafal, the seat of the prince of Powys, not far from Pool, in Montgomeryshire, now in the possession of the earl of Powys. {40c} Rhos and Penfro, the names of two Cantreds in Pembrokeshire. {41} Fflamddwyn, the name of a Saxon prince, against whom Urien, king of Cumbria, and his son Owain, fought the battle of Argoed Llwyfein. {46a} Nudd Hael, or the Generous, one of the three liberal heroes of Britain mentioned in the Triads, and celebrated by Taliesin. {46b} Griffydd Llwyd, the hero of the poem, was the son of Rhys, son of Griffydd, the son of the famous Ednyfed Fychan, seneschal to Llewelyn the great, and a brave warrior. Edward Philipp Pugh, Esq., of Coetmor, in Carnarvonshire, is a descendant in a direct line from Ednyfed Fychan, and has in his custody a grant from prince Llewelyn the Great of some lands in Creuddyn given to the said Ednyfed, and his posterity, with the prince’s seal in green wax affixed to it. To this worthy gentleman, and his lady, I am much obliged for their civility when I lived in those parts.—The royal family of the Tudors are likewise descended from Ednyfed Fychan, as appears by a commission that was sent to the Bards and Heralds of Wales, to enquire into the pedigree of Owain Tudor, king Henry the Seventh’s grandfather. {46c} The land of the Angles, i.e., England. {47a} Gwynedd, the name of the country, called by the Romans Venedotia, but by the English North Wales. {47b} Urien Reged, a famous king of Cumbria, who fought valiantly with the Saxons, whose brave actions are celebrated by Taliesin and Llywarch Hen. He is mentioned by Nennius, the ancient British historian, who wrote about A.D. 858. This writer is terribly mangled by his editors, both at home and abroad, from their not being versed in the British language. I have collected some manuscripts of his history, but cannot meet a genuine one without the interpolations of Samuel Beulan, otherwise I would publish it. I have in my possession many notes upon this author, collected from ancient British manuscripts, as well as English writers, who have treated of our affairs. This I have been enabled to do, chiefly by having access to the curious library at Llannerch, by the kind permission of the late Robert Davies, Esquire, and since by his worthy son, John Davies, Esquire, which I take this opportunity gratefully to acknowledge.