In 1415, he was provost of Paris, charged with keeping order in the city. During the civil war between the Armagnacs and Burgundians, he was one of the leaders of the Armagnac faction under Bernard VII, Count of Armagnac, constable of France. He opposed the partisans of the duke of Burgundy in their attempts to capture Paris.
He was a favourite of Charles the Dauphin (later Charles VII), who he saved from a Parisian riot in May 1418 during the Cabochien Revolt.
With Jean Louvet, another of Charles VII"s favourites, he was one of the main instigators of the assassination of John the Fearless by some Armagnac men at arms during his interview with Charles at Montereau-Fault-Yonne on 10 September 1419. From 1425, his influence waned as Arthur de Richemont"s waxed.
He next was in the service of king Louis XI and was killed in 1477 at the siege of Bouchain in Picardy, in the course of a war against the Bourgogne, after the death of Charles the Bold. Louis XI had him buried at Notre-Dame de Cléry (right), where Louis himself was buried in 1483.