are in existence which were executed by his orders, and he himself wrote a treatise on hunting, the Livre de chasse, known in English as The Hunting Book. Froissart, who gives a graphic description of his court and his manner of life at Orthez in Béarn, speaks enthusiastically of Gaston, saying: "I never saw one like him of personage, nor of so fair form, nor so well made, and again, in everything he was so perfect that he cannot be praised too much". Left without legitimate sons, Gaston de Foix was easily persuaded to bequeath his lands to King Charles VI, who thus obtained Foix and Béarn when the count died at Orthez in 1391. Almost immediately after Gaston's death Charles granted the county of Foix to Matthew, Viscount of Castelbon, a descendant of Count Gaston I of Foix. When Matthew died without issue in 1398, his lands were seized by Archambault, Count of Grailly and Captal de Buch, the husband of Matthew's sister Isabella (d. 1426), who was confirmed as legitimate count of Foix in 1401. House of Foix-Grailly Archambault's eldest son, John (ca. 1382–1436), who succeeded to his father's lands and titles in 1412, had married Jeanne in 1402, daughter of Charles III, king of Navarre. Having served the king of France in Guyenne and the king of Aragon in Sardinia, John became the royal representative in Languedoc, when the old quarrel between Foix and Armagnac broke out again. During the struggle between the Burgundian party and the Armagnacs, he intrigued with both, and consequently was distrusted by the Dauphin, afterwards King Charles VII. Deserting the French cause, he then allied himself with Henry V of England. When Charles VII became king in 1423, he returned to his former allegiance and became the king's representative in Languedoc and Guyenne. He then assisted in suppressing the marauding bands which were devastating France, fought for Aragon against Castile, and aided his brother, the cardinal of Foix, to crush an insurgency in Aragon. Peter, cardinal of Foix (1386–1464), was the fifth son of Archambault of Grailly, and was made archbishop of Arles in 1450. He took a prominent part in the struggle between the rival popes, and founded and endowed the Collège de Foix at Toulouse. The next count was John's son, Gaston IV of Foix, who married Leonora (died 1479), a daughter of John, king of Aragon and Navarre. In