He at once took a strong position in the fields of Maupertuis, his front covered by thick hedges, and approachable only by a deep and narrow lane which ran between vineyards. The Prince lined the vineyards and hedges with bowmen, and drew up his small body of men-at-arms at the point where the lane opened upon the higher plain where he was encamped. His force numbered only 8,000 men, and the danger was great enough to force him to offer the surrender of his prisoners and of the places he had taken, and an oath not to fight against France for seven years, in exchange for a free retreat. The terms were rejected, and three hundred French knights charged up the narrow lane. It was soon choked with men and horses, while the front ranks of the advancing army fell back before a galling fire of arrows from the hedgerows. In the moment of confusion a body of English horsemen, posted on a hill to the right, charged suddenly on the French flank, and the Prince seized the opportunity to fall boldly on their front.

The English archeay completed the disorder produced by this sudden attack; the French King was taken, desperately fighting; and at noontide, when his army poured back in utter rout to the gates of Poitiers, 8,000 of their number had fallen on the field, 3,000 in the flight, and 2,000 men-at-arms, with a crowd of nobles, were taken prisoners. The royal captive entered London in triumph, and a truce for two years seemed to give healing-time to France. But the miserable country found no rest in itself. The routed soldiery turned into free companies of bandits, while the captive lords procured the sums needed for their ransom by extortion from the peasantry, who were driven by oppression and famine into wild insurrection, butchering their lords, and firing the castles; while Paris, impatient of the weakness and misrule of the Regency, rose in arms against the Crown. The "Jacquerie," as the peasant rising was called, had hardly been crushed, when Edward again poured ravaging over the wasted land. Famine, however, proved its best defence. "I could not believe," said Petrarch of this time, "that this was the same France which I had seen so rich and flourishing. Nothing presented itself to my eyes but a fearful solitude, an utter poverty, land uncultivated, houses in ruins.

Even the neighbourhood of Paris showed everywhere marks of desolation and conflagration. The streets are deserted, the roads overgrown with weeds, the whole is a vast solitude." The misery of the land at last bent Charles to submission, and in May a treaty was concluded at Brérigny, a small place to the eastward of Chartres. By this treaty the English King waived his claims on the crown of France and on the Duchy of Normandy. On the other hand, his Duchy of Aquitaine, which included Gascony, Poitou, and Saintonge, the Limousin and the Angoumois, Périgord and the counties of Bigorre and Rouergue, was not only restored but freed from its obligations as a French fief, and granted in full sovereignty with Ponthieu, Edward's heritage from the second wife of Edward the First, as well as with Guisnes and his new conquest of Calais.