{37a} Tyganwy, the name of an old castle near the mouth of the river Conway to the east; it was formerly one of the royal palaces of Maelgwn Gwyneld, king of Britain, and was, as our annals relate, burnt by lightning, ann. 811, but was afterwards rebuilt, and won by the Earls of Chester, who held it for a considerable time, but was at last retaken by the princes of North Wales. {37b} Arfon, the country now called Carnarvonshire. {37c} Beli. This was probably Beli Mawr, to whom our Bards generally trace the pedigree of great men. {37d} Eryri, Snowdon, which some suppose derived from mynydd eryrod, the hill of eagles, but more probably from mynydd yr eiry, the hill of snow. Snowdon, in English, signifies literally the hill of snow, from Snow and Down, that being still a common name for a hill in England, as Barham Downs, Oxford Downs, Burford Downs, &c. {37e} Greidiawl, the name of a hero mentioned by Aneurin Gwawdrydd in his Gododin. {37f} Teivi, the name of a large river in Cardiganshire. {38a} Bryneich, the men of Bernicia, a province of the Old Saxons in the North of England. The inhabitants of Deira and Bernicia are called by our ancient historians, Gwyr Deifr a Bryneich. {38b} It was the policy of the British princes to make the Bards foretell their success in war, in order to spirit up their people to brave actions. Upon which account the vulgar supposed them to be real prophets. Hence the great veneration they had for the prophetical Bards, Myrddin Emrys, Taliesin, and Myrddin Wyllt. This accounts for what the English writers say of the Welsh relying so much upon the prophecies of Myrddin. There are many of these pretended prophecies still extant. The custom of prophecying did not cease till Henry the Seventh’s time, and the reason is obvious. {38c} Pwlffordd, is the name of a place in Shropshire. There is a bridge of that name still in that county. {38d} Cydweli, the name of a town, and Comot, in Carmarthenshire. {39a} Cefn Gelorwydd, is the name of some mountain, but where it is situated I know not. {39b} Arderydd, is the name of a place somewhere in Scotland; perhaps, Atterith, about six miles from Solway Frith. This battle is mentioned in the Triads, and was fought by Gwenddolau ap Ceidiaw and Aeddan Fradawg, petty princes of the North, against Rhydderch Hael, king of Cumbria, who got the battle. Myrddin Wyllt, or Merlin, the Caledonian, was severely handled by Rhydderch Hael, for siding with Gwenddolau, his patron, which he complains of in his poem entitled Afallenau, or Apple-trees. {39c} Eiddionydd, now Eifionydd, the name of a Comot, or district, in Carnarvonshire. {39d} Drws Daufynydd, is the name of a pass between two hills, but where it lies I know not. Drws Daufynydd signifies, literally, the door of the two hills. There are many passes in Wales denominated from Drws, as Drws Ardudwy, Drws y Coed, Bwlch Oerddrws, &c. {39e} Aberffraw, the name of the prince’s chief palace in Anglesea.