Philip III (30 April 1245 – 5 October 1285), called the Bold (French: le Hardi), was the King of France, succeeding his father, Louis IX, and reigning from 1270 to 1285. He was a member of the House of Capet.
Born in Poissy, to Louis IX (the later Saint Louis) and Margaret of Provence, Philip was prior to his accession Count of Orleans. He accompanied his father on the Eighth Crusade to Tunisia in 1270. His father died at Tunis and there Philip was declared king at the age of 25. Philip was indecisive, soft in nature, timid, and apparently crushed by the strong personalities of his parents and dominated by his father's policies. He was called "the Bold" on the basis of his abilities in combat and on horseback and not his character. He was pious, but not cultivated. He followed the dictates of others, first of Pierre de la Broce and then of his uncle Charles I of Sicily.
After his succession, he quickly set his uncle on negotiations with the emir to conclude the crusade, while he himself returned to France. A ten-year truce was concluded and Philip was crowned in France on 12 August 1271. On 21 August, his uncle, Alfonso, Count of Poitou, Toulouse, and Auvergne, died returning from the crusade in Italy. Philip inherited his counties and united them to the royal demesne. The portion of the Auvergne which he inherited became the "Terre royale d'Auvergne", later the Duchy of Auvergne. In accordance with Alfonso's wishes, the Comtat Venaissin was granted to the Pope Gregory X in 1274. Several years of negotiations yielded the Treaty of Amiens with Edward I of England in 1279. Thereby Philip restored to the English the Agenais which had fallen to him with the death of Alfonso. In 1284, Philip also inherited the counties of Perche and Alençon from his brother Pierre.
Philip all the while supported his uncle's policy in Italy. When, after the Sicilian Vespers of 1282, Peter III of Aragon invaded and took the island of Sicily, pope Martin IV excommunicated the conqueror and declared his kingdom (put under the suzerainty of the pope by Peter II in 1205) forfeit. He granted Aragon to Charles, Count of Valois, Philip's son. Philip intervened in the Navarrese succession after the death of Henry I of Navarre and married his son, Philip the Fair, to the heiress of Navarre, Joan I.
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