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.
Manuel Buíça
Manuel dos Reis da Silva Buíça (30 December 1876 – 1 February 1908) was a Portuguese schoolteacher and soldier involved in the regicide of King Carlos I of Portugal and Prince Royal, Luís Filipe, during the events that became known as the Lisbon Regicide.