John I of Portugal

John I of Portugal, also known as John of Aviz, was a Portuguese king who reigned from 1385 to 1433. He is credited with strengthening Portugal's independence and laying the foundation for its Age of Discoveries. His leadership united the country after a period of internal conflict and supported maritime exploration, leading to Portugal's expansion overseas. John I was a founder of the Aviz dynasty, and his reign is marked by political stability, military success, and significant contributions to Portuguese culture and exploration.