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 de Arriaga
Manuel José de Arriaga Brum da Silveira e Peyrelongue (; July 8, 1840 in Horta – March 5, 1917 in Santos-o-Velho, Lisbon) was a Portuguese lawyer, the first Attorney-General and the first elected President of the First Portuguese Republic, following the deposition of King Manuel II of Portugal and a Republican Provisional Government headed by Teófilo Braga (who would succeed him in the post following his resignation).