The question of female succession to the French throne was raised after the death of Louis X in 1316. Louis X left only one daughter, and John I of France, who only lived for five days. Furthermore, the paternity of his daughter was in question, as her mother, Margaret of Burgundy, had been exposed as an adulterer in the Tour de Nesle affair. Philip, Count of Poitiers, brother of Louis X, positioned himself to take the crown, advancing the stance that women should be ineligible to succeed to the French throne. Through his political sagacity he won over his adversaries and succeeded to the French throne as Philip V. By the same law that he procured, his daughters were denied the succession, which passed to his younger brother, Charles IV, in 1322.