King John IV was the King of Portugal from 1640 until his death in 1656. He was a member of the Braganza dynasty and came to power after a successful revolt against Spanish rule, which had lasted for 60 years. His reign marked the restoration of Portuguese independence and the beginning of a new era for the nation. During his rule, King John IV focused on strengthening the economy and expanding overseas territories. He supported the arts and culture, leading to a flourishing of Portuguese Baroque art and architecture. His leadership helped solidify Portugal's identity and influence in the world.