In 1328, King Charles IV of France died without male heirs, as his brothers did before him. Philip of Valois, the late king's first cousin acted as regent, pending the birth of the king's posthumous child, which proved to be a girl. Isabella of France, sister of Charles IV, claimed the throne for her son, Edward III of England. The English king did not find support among the French lords, who made Philip of Valois their king. From then on the French succession not only excluded females, but also rejected claims based on the female line of descent.