Bibars, who had the command of the Mamelukes, hastened to take advantage of his first successes. When the body of the count d’Artois was found, the Mamelukes exhibited his cuirass, sown over with fleurs des lis, and declared it was the spoil of the king of France. They carried about the heads of several knights in triumph, and heralds-at-arms repeated in a loud voice: “The Christian army is nothing but a trunk without life, like the heads you behold on the points of these lances.”

This spectacle completely inflamed the ardour of the Mussulmans. The leaders and soldiers, with great cries, demanded to be led against the Christians. The Mussulman army had orders to hold themselves in readiness for battle on the morrow, the first Friday in Lent.

Louis IX. was warned of the intention of the Saracens; he gave orders to the leaders to fortify the camp, and prepare their troops for the conflict. On the Friday, by daybreak, the Christians were all under arms; and at the same time the leader of the Mussulmans appeared in the plain, ranging his men in battle-array. He placed his cavalry in the front, behind them the infantry, and still further back, the reserve. He extended or strengthened his lines according to the positions he saw his enemies take. His army covered the plain from the canal to the river. At midday he unfurled the banners and sounded the charge.

The duke of Anjou was at the head of the camp on the side towards the Nile; he was the first attacked. The infantry of the Saracens commenced by launching the Greek fire. This fire seized the clothes of the soldiers and the caparisons of the horses. The soldiers, enveloped in flames they could not extinguish, ran about uttering the most frightful cries; the horses broke away, and created confusion in the ranks. By means of this disorder, the enemy’s cavalry opened themselves a passage, dispersed such as were still fighting, and penetrated within the intrenchments. The duke of Anjou was unable to resist the multiplied attacks of the Saracens; his horse having been killed under him, he fought on foot, and, nearly overwhelmed by the number of his enemies, he at length sent to Louis IX. for aid.

The king, himself engaged with the Mussulmans, redoubles his ardour and his efforts, drives the enemy back on to the plain, and then flies where other dangers call him. The knights who follow him precipitate themselves upon the Mussulman battalions which were attacking the quarter of the duke of Anjou. Louis is not stopped, either by the numberless arrows shot at him, or by the Greek fire, which covers his arms and the caparison of his horse. In the account of this battle, Joinville is astonished that the king of France escaped being killed, and can in no other way explain this species of miracle than by attributing it to the power of God: “Then it may well be believed” (we let the seneschal of Champagne speak) “that the holy king had his God in remembrance and wish: for, in truth, our Lord was then a great friend to him in his need, and aided him so effectually, that he delivered his brother, the duke of Anjou, and drove away the Turks.”

On the left of the duke of Anjou, the Crusaders from the isle of Cyprus and Palestine were encamped, under the command of Guy d’Ibelin and his brother Baldwin. These Crusaders had not been engaged in the last battle, and had lost neither their horses nor their arms. Near them fought the brave Gauthier de Chatilion, at the head of a chosen troop. These intrepid warriors were proof against all attacks, and remaining firm at the post confided to them, contributed greatly to the saving of both the camp and the army.

The Templars, having lost the greater part of their knights in Mansourah, formed an intrenchment or barricade in front of them, of the wood of the machines taken from the Saracens; but this feeble defence was of little avail against the Greek fire. The enemy rushed into the camp through the flames; the Templars formed an impenetrable rampart of their bodies, and resisted the violent attacks of the assailants during several hours. The conflict was so severe at this point, that the earth could scarcely be seen behind the spot occupied by the Templars, so completely was it covered with arrows and javelins. The grand master of the Templars lost his life in the mêlée, and a great number of knights died in defending or avenging him. The prodigies of their bravery at last succeeded in arresting the progress of the enemy, and the last who fell in this hardly-contested battle had the consolation, when dying, to see the Saracens fly.

Guy de Malvoisin was placed near to the post which the knights of the Temple defended so bravely; the battalion he commanded was composed almost entirely of his relations, and in battle presented the spectacle of a family of warriors, ever united and ever invincible. Guy incurred the greatest peril; he was wounded several times, but never dreamt of retiring from the contest. His example and the sight of his wounds redoubled the courage of his companions, who, at length, repulsed the Mussulmans. Not far from Guy de Malvoisin, descending towards the canal, the Flemish Crusaders were posted. William, their count, was at their head; they sustained the furious shock of the Mussulmans without giving way in the least: Joinville, with some other knights, fought on their left, and on this occasion owed his safety to the warriors of Flanders, to whom he accords the warmest praises. The Flemings, united with the Champenois, put the Mussulman cavalry and infantry to flight, pursued them out of the camp, and returned loaded with the bucklers and cuirasses they had taken from their enemies.

The count of Poictiers occupied the left wing of the army; but as this prince had only infantry under his command, he was unable to resist the cavalry of the Saracens. Such were the warriors of these remote times, that when they were not on horseback, they seemed to be disarmed, and could not fight even for the defence of intrenchments. The quarter confided to the Poitevins was attacked by the Mussulmans at an early period of the fight; the Mamelukes plundered the tents of the Christians, the brother of the king was dragged out of the camp by some Saracen horsemen, and was being carried away a prisoner. In this extreme peril the count of Poictiers could not look to Louis IX. for any assistance, as he had gone to the succour of the count of Anjou; nor to the other leaders of the Christian army, all so closely pressed by the enemy themselves. This prince was adored by the people for his goodness; and on this occasion received the reward of his virtues, by owing his deliverance to the love with which he inspired all the Crusaders. When the workmen, sutlers, and women that followed the army saw him made a prisoner, they assembled in the greatest fury, and arming themselves with axes, clubs, sticks, or anything that fell in their way, flew after the Mussulmans, delivered the count of Poictiers, and brought him back in triumph.

At the extremity of the camp, close to the quarters of the Poitevins, fought Josserant de Brançon, with his son and his knights. The companions in arms of Josserant had all left Europe well mounted and magnificently equipped: now they all fought on foot, and had nothing left but lance and sword. Their leader alone was on horseback, and rode from rank to rank, exciting the soldiers, and flying to every point where the danger seemed most pressing. This weak troop would entirely have perished, if Henry of Brienne, who remained in the camp of the duke of Burgundy, had not caused his cross-bowmen to shoot across the arm of the river, every time the Saracens renewed their attacks. Of twenty knights that accompanied Josserant, twelve were left upon the field of battle. This old warrior had been present in thirty-six battles, in all of which he had borne away the prize of valour. Joinville, when relating the exploits of this day, remembers that he had formerly seen Josserant de Brançon come out victorious from a combat against some Germans who were pillaging the church of Mâcon; he had seen him prostrate himself at the foot of the altar, and pray with ardour for the favour of dying in fight against the enemies of Christ. And Josserant obtained the blessing he had asked of God; for a few days after the battle he died of his wounds.