Walter, fighting close beside the prince, parried more than one blow intended for him, and the prince himself slew the Count of Blois, whose followers all fell around him. The Count of Flanders was also slain, and confusion began to reign among the assailants, whose leaders had now all fallen. Phillip himself strove to advance with his division into the fight, but the struggle between the Genoese and the men-at-arms was still continuing, and the very multitude of his troops in the narrow and difficult field which the English had chosen for the battle embarrassed his movements.

Charles of Luxembourg, King of the Romans, and afterwards Emperor of Germany, son of the old King of Bohemia, with a large body of German and French cavalry, now assailed the English archers, and in spite of their flights of arrows came to close quarters, and cutting their way through them joined in the assault upon the men-at-arms of the Black Prince. Nearly 40,000 men were now pressing round the little body, and the Earls of Northampton and Arundel moved forward with their divisions to his support, while the Earl of Warwick, who was with the prince, despatched Sir Thomas of Norwich to the king, who still remained with his powerful reserve, to ask for aid.