The King, finding the Welch so strong, and knowing their fickleness, stayed some time at Oswestry, in expectation that a confederacy so hastily formed would as suddenly dissolve; but finding them firm and determined in their adherence, and that his enemies were so near, he became desirous to bring on an engagement. He therefore moved towards the Dyke with his whole army, and pushed on a party to the Ceiriog river, which washes the foot of the Berwyn; giving orders that the banks should be cleared of the woods, which at that time formed a complete jungle, to prevent his troops falling into the ambuscade of the enemy. It would seem the Welch had taken the precaution to guard the passes of the river; for the King in person, in an attempt to get possession of a bridge, experienced one of those hair-breadth escapes which some times decide the fate of kingdoms: {28}—A Welch archer, having marked the personal exertions of the King, and fired with the hope of freeing his country, chose a place of concealment, from whence, watching his opportunity, he discharged an arrow with such deadly aim, that it must inevitably have slain the King, had not Hubert De St. Clair, Constable of Colchester, who was in close attendance, and whose name is deservedly recorded for his devotion to his monarch, seeing the danger, rushed into the course of the fatal shaft, and received it in his heart; thus terminating his attachment with his life. Whilst Henry was thus employing his forces in clearing the banks of Ceiriog, a party of Welchmen, relying on their knowledge of the country, and prompted by patriotic zeal, attempted to surprise his vanguard, consisting chiefly of pikemen, and the flower of the King’s army. This brought on a very bloody engagement, although not general, which cost the lives of many brave men on both sides; but the attack having been commenced without any preconcerted plan, and merely from a sudden ebullition of desperate daring, Henry’s veterans were victorious, and making good the passage of the river, advanced up the Berwyn. In the mean time, the Welch Princes had advanced with their army from Corwen, and had taken a strong position on the frontier ridge. A fieldwork and entrenchment are still visible on the Mountain, over Llangollen, and was probably the station of part of the Welch forces, under Owen Gwynedd and his allies. Henry, finding his formidable enemy thus advantageously posted on the crown of the hill, did not deem it prudent to attack him in this position, and therefore encamped his forces on the lower part of the Mountain. {29}