Prince João of Portugal, also known as John of Portugal, was born on June 13, 1430. He was the son of King Edward of Portugal and Queen Eleanor of Aragon. João played a significant role in the politics of his time, particularly during the Portuguese Renaissance, which was marked by exploration and cultural growth. João became the Duke of Valencia de Campos and was known for his military involvement. He was also a key figure in the House of Aviz, which ruled Portugal during the late Middle Ages. His life was intertwined with the broader historical context of Portugal's maritime exploration.