English claims to the French throne as King of France, but with his new son-in-law King Henry V of England as his heir (disinheriting Charles VI's son, the Dauphin Charles). Henry V then adopted the title Heir of France instead. Henry V and Charles VI died within two months of each other in 1422, and Henry V's infant son (Charles VI's grandson) Henry VI became King of France. He was the only English king who was "de facto" King of France, rather than using the style as a mere title of pretense. However, by 1429 Charles VII, with the support of Joan of Arc, had been
English claims to the French throne female inheritance finally had to be introduced. On the death of Philip IV the Fair's son Louis X in 1316, immediately followed by that of his son John I the Posthumous, it had to be decided whether his young daughter Joan or his brother Philip would succeed to the throne. Philip arranged for his coronation, and became Philip V of France. He was challenged by the supporters of the Princess Joan, daughter of Louis X, on the basis of his right to the throne. In response, he convened an assembly of prelates, barons, and burgesses at Paris, who acknowledged him