John III of Navarre was a king who ruled the Kingdom of Navarre from 1555 until his death in 1572. He was born in 1525 and was a member of the House of Albret. His reign was marked by the challenges of maintaining the independence of Navarre amid the growing power of France and Spain. During his rule, John III sought to strengthen his kingdom's position and fostered alliances with other territories. He was known for his efforts to promote trade and improve the economy of Navarre. His legacy includes the continued struggle for the region's autonomy in a politically turbulent era.