 Philip V successfully contested her claims for a number of reasons, including her youth, doubts regarding her paternity (her mother was involved in the Tour de Nesle Affair), and the Estates General's determination that women should be excluded from the line of succession to the French throne.The succession of Philip, instead of Joan, set the precedent for the French royal succession that would be famously known as the Salic law.Philip V restored somewhat good relations with the County of Flanders, which had entered into open rebellion during his father's rule, but simultaneously his relations with Edward II of England worsened as the English king, who was also Duke of Guyenne, initially refused to pay him homage.