Afonso I, Duke of Braganza time, to his first cousin once removed, Constance of Noronha, daughter of Alfonso Enríquez, Count of Gijón and Noreña (a natural son of Henry II of Castile), and of Isabel of Portugal (a natural daughter of Fernando I of Portugal). They had no issue. Afonso I, Duke of Braganza Dom Afonso I of Braganza (; 10 August 1377 – 15 December 1461) was the first Duke of Braganza and the eighth Count of Barcelos. He would start a dynasty, the House of Braganza, that would end up being the most powerful and wealthy in all of Portugal. His descendants would
House of Braganza atop the Portuguese Crown Sceptre, the Sceptre of the Dragon and the Sceptre of the Emperor of Brazil. The wyvern is also sometimes used as a supporter in the coat of arms of both the Brazilian and Portuguese branches of the family. Because of its use in heraldry by the Braganza as the ruling house, and given Pedro IV's link with Porto, a dragon was added to the old coat of arms of the municipality of Porto and is still a part of FC Porto's coat of arms, who are nicknamed "The Dragons". Since the 17th century, the House of