All the nobility of Wales had solemnly sworn to defend their country till death against the invasion of the English, and not to relinquish or forsake one another; and the return of Gryffydd Ap Madog to his allegiance diffused through every breast the hope of better days. {54c} From this time to the day of his death, I do not find that he again deserted his Prince, but attached himself to the fortunes of his country, although fears of the resentment of his countrymen for his former conduct made him keep close to his Castle of Dinas Bran, where he died in 1270, {54d} and was buried by the side of his father in the Abbey Church of Valle Crucis; leaving his country in the enjoyment of freedom and peace; the Welch having, by innate bravery and constancy, aided by the fastnesses of their country, and the good policy of their Prince, freed themselves for a time from the thraldom of their potent enemy. Mr. Pennant gives a different account of his end. {55a} He says that “his wife Emma, having alienated his affection from his own country, made him an instrument of its subjection, and of the destruction of his own family; for, as he took part with Henry III. and Edward I. against his natural Prince, the resentment of his countrymen was excited against him, and he was obliged to shelter himself from their rage in his Castle of Dinas Bran, where probably shame and grief put an end to his life.” Be that as it may, Gryffydd Ap Madog, by his wife Emma, daughter of John, Lord Audley, left issue four sons, viz. Madog, Llewellyn, Gryffydd, and Owen. {55b} Madog, the eldest, became Lord of Dinas Bran, &c. He died, it is supposed, not long after his father, leaving two sons to inherit his property. {55c} The eldest, called Madog, had, by his father’s will, Bromfeild and Yale, the Castell Dinas Bran, &c.; the second son, Llewellyn, the Lordship of Chirk, &c. It should seem these children were not of age when their father died; for Edward I. King of England, took on him to appoint guardians to them both, and committed Madog, the elder, to the care of John, Earl of Warren, one of his favorites; and Llewellyn he intrusted to Roger Mortimer, son of Lord Mortimer, of Wigmore. {56a} These men well understood the nature of the appointment; and it is probable that Edward had maturely weighed in his mind the potency of their enmity, who could be such powerful friends, and having then but recently subjugated the country, he might wish out of his way two scions of a stock which had proved so stubborn and so valiant. It was well known that Warren and Mortimer had rid themselves of their respective charges, and had possessed themselves of their estates, which they were suffered to enjoy without an inquiry being instituted respecting them, or about the disappearance of their wards; but the manner of the murder of these two unfortunate children has but lately been discovered, in a manuscript in the Bodleian Library. {56b} The guardian of the two boys