The King, being informed of the approach of the Barons, soon set himself in motion with his army, and went forward to meet them with unfurled banners, preceded by the royal ensign, which bore on it a dragon, as if announcing itself the messenger of death. His army was divided into three bodies; the first division was under the command of his eldest son Edward, accompanied by William de Valence, Earl of Pembroke, and John de Warrenne, Earl of Surrey and Sussex. The second was commanded by the King of Germany and his son Henry; whilst King Henry himself commanded the third division. The army of the Barons was in four divisions; the first of which was under the command of Henry de Montfort and the Earl of Hereford; the second under Gilbert Clare, John Fitz John, and William de Monchesnil; the third, composed of Londoners, was commanded by Nicholas Segrave; and Earl Simon and Thomas Pelvedon led the fourth division. Edward with his division rushed on the enemy with such impetuosity that he forced them to retreat, many of them--report stated the number of knights to amount to sixty--being drowned. The Londoners were soon put to flight, and Edward, who thirsted for their blood owing to the insult lately offered to his mother, pursued them for the distance of four miles, and made a dreadful slaughter of them; but, by his absence, he much weakened the King's forces. In the meantime, some of the chiefs of the King's army, seeing the Earl's standard on the hill, and thinking that the Earl himself was there, hastened thither suddenly and slew the citizens of London who were shut up in the car, not knowing that they were friendly to their cause. During all this time, however, the Earl and Gilbert Clare were by no means idle, but struck down and slew all who opposed them, directing their utmost endeavours to take the King alive; and great numbers of the King's adherents fell before them. John, Earl Warrenne, William de Valence, and Guy de Lusignan, all uterine brothers of the King, Hugh Bigod, and about three hundred armed knights, turned their backs and fled before the fierce attacks of the Barons. Richard, King of Germany, Robert Bruce, and John Comyn, who had brought a number of Scots with them, were made prisoners. King Henry, also, after having his horse killed under him, surrendered himself to Simon de Montfort, and was shortly afterwards placed in the priory under a guard. Many of the Barons of Scotland were slain on the spot on that day, and the foot-soldiers who had come with them were slaughtered in great numbers. There were, moreover, made prisoners, Humphrey de Bohun, Earl of Hereford; John Fitzallan, Earl of Arundel; William Bardolf, Robert Tateshull, Roger Somerey, Henry Percy, and Philip Basset. On the side of the King were slain the Justiciaries, William Wilton and Fulk FitzWarren, the one falling in battle, the other being drowned in the river. On the side of the Barons there fell Ralph