King Philip III of France, also known as Philip the Bold, ruled from 1270 to 1285. He was the son of King Louis IX and succeeded his father after his death during the Eighth Crusade. Philip III's reign was marked by efforts to strengthen royal authority and expand the French territory, particularly through strategic marriages and alliances. During his rule, Philip III faced challenges, including conflicts with the English crown and internal disputes among the nobility. He is also known for his support of the Catholic Church and for continuing the policies of his father, which aimed to consolidate power and improve the administration of the kingdom.