[1] In 1425, Charles renewed his earlier betrothal by marrying Agnes of Burgundy (1407–1476), daughter of John the Fearless.

[2] Charles served with distinction in the Royal army during the Hundred Years' War, while nevertheless maintaining a truce with his brother-in-law and otherwise enemy, Philip III, Duke of Burgundy.

[2] He was present at the coronation of Charles VII where he fulfilled the function of a peer and conferred knighthood.

[1] Despite this service, he took part in the "Praguerie" (a revolt by the French nobles against Charles VII) in 1439–1440.

When the revolt collapsed, he was forced to beg for mercy from the King, and was stripped of some of his lands.