 From the end of the 15th century the cathedral was used as the burial place of the royal family of Navarre.Francis Phoebus was buried here in 1483, followed by Catherine of Navarre, her consort Jean d'Albret and several of their children, among them Henry II of Navarre and his wife Marguerite de Navarre, grandparents of King Henry IV of France.Of the funerary monuments ordered by Henry II, subjected to iconoclastic damage by Protestants and to the collapse of the sanctuary vault in 1599, nothing remains.