sentences:  For those who did not recognize the treaty and believed the Dauphin Charles to be of legitimate birth, he was considered to be the rightful heir to the throne.For those who did not recognize his legitimacy, the rightful heir was recognized as Charles, Duke of Orléans, cousin of the Dauphin, who was in English captivity.Only the supporters of Henry VI and the Dauphin Charles were able to enlist sufficient military force to press effectively for their candidates.