The Kingdom of Navarre merged with the French crown when king Henry of Navarre became king Henry IV of France in 1589.
Only upper Navarre merged with France,the southern rump of that kingdom had been annexed by Ferdinand of Aragon in 1512.The Queen of Navarre,Catherine I then fled to what remained of her kingdom north of the Pyrenees.
When Henri IV became King of France,he also held vast lands in France which had belonged to his parents,Jeanne III,Queen of Navarre and Antoine de Bourbon.
Jeanne III d'Albret also held the following titles
In her own right
Duchess of Albret (1555–1572)
Countess of Limoges (1555–1572)
Countess of Foix (1555–1572)
Countess of Armagnac (1555–1572)
Countess of Bigorre (1555–1572)
Countess of Périgord (1555–1572)
By Marriage
Duchess of Vendôme (1550–1562)
Duchess of Beaumont (1550–1562)
Countess of Marle (1548–1562)
Countess of La Fère (1548–1562)
Countess of Soissons (1550–1562)