King John II of Navarre was a monarch who ruled from 1450 to 1479. He was born in 1425 and was a member of the House of Évreux. His reign was marked by political challenges, including conflicts with neighboring territories and internal strife within Navarre. John II was known for his efforts to strengthen the kingdom and maintain its independence. He faced significant opposition, particularly from the Crown of Castile, which sought to exert control over Navarre. Despite these challenges, he worked to secure alliances and improve the administration of his realm.