Under the treaty, Charles was granted the
Duchy of Normandy as an additional appanage. He proved unable to control his new possession and ran into conflict with his former ally Francis II of Brittany. Louis dispatched the royal army to Normandy and assumed direct royal control of the Duchy. Charles, now reconciled with Duke Francis, fled to Brittany, where he remained until September 1468, when he and Francis signed the
Treaty of Ancenis with Louis, promising to abandon the former Count of Charolais, now Duke of Burgundy. In October 1468 Louis was imprisoned by Charles of Burgundy during a conference at
Péronne. In order to obtain his release, Louis agreed to grant
Champagne to his brother as compensation for
Normandy. Once free, Louis reneged on the promises made under duress but in April 1469, he finally reconciled with his brother, granting him the
Duchy of Aquitaine, recently won back from the Kings of England in 1453. Thenceforth Charles quartered the royal arms of
France (differenced by a
bordure engrailed gules) with one of the three lions of
Plantagenet, to signify the duchy. Charles also agreed with the Duke of Burgundy to marry the latter's only child and heir,
Mary of Burgundy. Louis had no intention of allowing a union between his brother and his enemy's daughter and dispatched envoys to
Pope Paul II to ensure that the necessary
dispensation, required on grounds of
consanguinity, was not granted. Louis was unsuccessful in this endeavour, as the Pope granted the dispensation. Still, the marriage plan came to nothing as Charles died at
Bordeaux in May 1472, probably from a combination of
tuberculosis and a
venereal disease contracted from his mistress Colette de Chambes, the wife of
Louis d'Amboise, Viscount of Thouars. Charles died 24/25 May 1472 and left no legitimate issue. His apanage of Berry returned to the crown. ==Issue==