Career
He was the son of Gaston de Foix, Prince of Viana, and grandson of Eleanor of Navarre, whom he succeeded. During his brief reign, he was under the protection of his mother, the regent Magdalena of Valois. His succession was approved by the Agramont party, while the Beaumont party fell behind Ferdinand the Catholic who started to build up political and military pressure on the Kingdom of Navarre in the run-up to the fully-fledged invasion of 1512.