Under the terms of the Peace of Auxerre (22 August 1412), Philip was betrothed to Catherine, demoiselle de Guise, second daughter of John the Fearless, Duke of Burgundy; in the end, this marriage was never celebrated.

He remained in the service of the dauphin and his army in Poitou and Berry, with custody of the lands situated between the Seine and Loire.

He left a natural son named Philip Anthony, called the Bastard of Vertus, who entered the service of his uncle Duke Charles of Orléans in 1436, and was later governor of Blois.

He also participated in the siege of Montereau which was occupied by the English, and was appointed governor of Coucy by King Charles VII in 1443; his death took place certainly before 18 July 1445, when the executors of his will took actions related to his possessions.

He died without issue (a family "of Vertus" claimed descendance from the bastard, but there is no indication who supported this argument and its origin remains unclear).