About the middle of August, 1402, Henry, finding the power of Owen Glyndwr increasing, and the turbulence of the Welch breaking all bounds, resolved to crush their rebellion, and putting himself at the head of a powerful army, marched into Wales. But the very elements seemed to fight against him, the weather proving so extraordinarily inclement that the King was obliged to make a precipitate retreat, without accomplishing his intentions. {82a} The people attributed the dreadful tempests which at that season occurred to the magic power of Owen, who found it his interest to encourage their credulity. Edward Mortimer, perceiving the King had no intention of opening his prison doors, and Glyndwr treating him with increased gentleness and respect, fell into the scheme this artful and politic man had devised. Owen Glyndwr {82b} was married to Margaret, the only daughter of Sir David Hanmer, of Hanmer, in Flintshire (who was one of the Justices of the King’s Bench, and was knighted by King Richard II.) by whom he had many children; and at this time three of his daughters were unmarried, on one of whom the captive Earl cast an eye of affection. Glyndwr at once saw the advantage of this predilection, and proposed to league with him against the King, and to cement this union by the marriage of his daughter to the Earl. To strengthen this league, and make the proposed insurrection irresistible, the Earls of Worcester and Northumberland, two of the most powerful Nobles in England, together with the Scottish Chief Douglas, and Northumberland’s valiant son of Henry Percy, better known by the name of Hotspur, were invited to join their standards; and these rebellious Lords met at the house of Dafydd Daran, the Archdeacon of Bangor, {83a} and there signed an indenture, sealing it with their own seals, to bind themselves to assemble their forces, and join in putting down the King, and for dividing the kingdom, vainly relying upon a foolish prediction of Merlin, in which the King was depicted as an execrable moldwarp, and Glyndwr and his colleagues as the wolf, the lion, and the dragon, that were to pull the moldwarp down. {83b} This treaty, made with so much secrecy, and executed in the recesses of Glyndwr’s dominions, was soon communicated to King Henry. Sir David Gam, so called because he had a crooked eye, or squinted, or, as some say, had but one eye, was a strong and faithful partizan of the Duke of Lancaster, now King Henry IV. and consequently the inveterate enemy of Owen Glyndwr, now Prince of Wales, at whose Parliament he attended, together with the chief of the Welch nobles and gentry, but with very different intentions; he having determined to put an end to Glyndwr’s rebellion with his life. {83c}