Major-general Rouvigny, who had behaved with great gallantry during the whole action, advanced with five regiments of cavalry to support the centre; when St.Kuth, perceiving his design, resolved to fall upon him in a dangerous hollow way which he was obliged to pass.

For this purpose he began to descend Kircommodon-hill with his whole reserve of horse; but in his way was killed by a cannon-ball.

His troops immediately halted, and his guards retreated with his body.

His fate dispirited the troops, and produced such confusion as Sarsfield could not remedy; for though he was next in command, he had been at variance with St.Ruth since the affair at Athlone, and was ignorant of the plan he had concerted.

Rouvigny having passed the hollow way without opposition, charged the enemy in flank, and bore down all before him with surprising impetuosity; the centre redoubled their efforts and pushed the Irish to the top of the hill, and then the whole line giving way at once from right to left threw down their arms.