Claim: Henry III of France was succeeded by Henry IV, founder of the House of Bourbon.
Evidence: In 1589 , Jacques Clément , a Catholic fanatic , murdered Henry III , who was succeeded by the King of Navarre who , as Henry IV , would assume the throne of France after converting to Catholicism , and become the first French king of the House of Bourbon.
The royal Bourbons originated in 1268 , when the heiress of the lordship of Bourbon married a younger son of King Louis IX.