Manuel I of Portugal
Manuel's mother was the granddaughter of King John I of Portugal, whereas his father was the second surviving son of King Edward of Portugal and the younger brother of King Afonso V of Portugal. In 1495, Manuel succeeded his first cousin, King John II of Portugal, who was also his brother-in-law, as husband to Manuel's sister, Eleanor of Viseu.
Letter of Pêro Vaz de Caminha
Manuel I ascended the throne at a time when Portugal was discovering wealth in Africa and the East; he was keen on ensuring Portugal maintained dominance in trade with the East. Portugal has established their presence with enclaves, forts and fortified trading posts.