Prince John of Portugal, also known as John of Portugal, was a notable figure in the Portuguese royal family during the late 15th century. Born in 1455, he was the son of King Afonso V of Portugal and Queen Isabella of Portugal. John played a significant role in the political landscape of Portugal, particularly during the period of exploration and expansion. He was known for his involvement in the Age of Discoveries, a time when Portugal established trade routes and colonies across the globe. Although he never ascended to the throne, his contributions to the royal court and his support for maritime exploration were influential in shaping Portugal's history.