She was a sister of that young King of Navarre, Charles II., who was soon to get the name of Charles the Bad, and to become so dangerous an enemy for Philip's successors.

Seven months after his marriage, and on the 22d of August, 1350, Philip died at Nogent-le-Roi in the Haute-Marne, strictly enjoining his son John to maintain with vigor his well-ascertained right to the crown he wore, and leaving his people bowed down beneath a weight "of extortions so heavy that the like had never been seen in the kingdom of France." Only one happy event distinguished the close of this reign.

As early as 1343 Philip had treated, on a monetary basis, with Humbert II., Count and Dauphin of Vienness, for the cession of that beautiful province to the crown of France after the death of the then possessor.

Humbert, an adventurous and fantastic prince, plunged, in 1346, into a crusade against the Turks, from which he returned in the following year without having obtained any success.

Tired of seeking adventures as well as of reigning, he, on the 16th of July, 1349, before a solemn assembly held at Lyons, abdicated his principality in favor of Prince Charles of France, grandson of Philip of Valois, and afterwards Charles V.