The d’Evreux family were a junior branch of the Capets.
Phillipe d’Evreux married Jeanne of Navarre. Jeanne’s mother had been accused of infidelity in theTour Nestle Affair.
Jeanne (in Navarre Juana II) was allowed to take the throne of Navarre. (Navarre had been ruled from Paris since the marriage of Juana I to Philippe IV)
Eventually Phillipe was accepted as co-ruler of Navarre. his son Charles married another Jeanne, the daughter of Jean II of France!