Charles, Duke of Orléans to swear the traditional oath of vengeance for their father's murder. During the early years of his reign as duke, the orphaned Charles was heavily influenced by the guidance of his father-in-law, Bernard VII, Count of Armagnac, for which reason Charles' faction came to be known as the Armagnacs. After war with the Kingdom of England was renewed in 1415, Charles was one of the many French noblemen at the Battle of Agincourt on 25 October 1415. He was discovered unwounded but trapped under a pile of corpses, incapacitated by the weight of his own armour. He was taken prisoner
Charles, Duke of Brittany Considering Charles' extreme piety, historian Johan Huizinga regarded it unlikely that Charles actually had a child born outside marriage and that Jean Froissart was probably mistaken in identifying John as Charles' son. After his death, his family successfully lobbied for his canonization as a Saint of the Roman Catholic church for his devotion to religion. The canonization process was nullified by Pope Gregory XI at the request of Duke John IV of Brittany, Charles' final opponent in the Breton War of Succession and the recognized Duke of Brittany under the first Treaty of Guerande. Subsequently, in 1904, Charles de Châtillon