João III of Portugal

João III of Portugal, who ruled from 1521 to 1557, was a significant monarch during the Age of Discoveries. He strengthened Portugal's global influence by supporting explorations and expanding its overseas empire, particularly in Africa, Asia, and South America. His reign saw the establishment of trade routes and colonial territories, which greatly enhanced Portugal's wealth. João III was also known for his efforts to promote the Catholic faith, facing challenges like the Protestant Reformation. While he had successes, his reign also faced economic difficulties, leading to eventual decline in Portuguese power.