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
Fernando II, Duke of Braganza focused on diminishing the powers of the two most powerful noble houses in the kingdom, House of Beja and Viseu and the House of Braganza. King John II accused his first cousin, Diogo I of Beja and Viseu (brother-in-law of Fernando II), of high treason and had him brutally executed. Soon after, the King also accused his second half-cousin, Fernando II of Braganza, of high treason and had him executed at Évora in 1483. Afterwards, the assets of the House of Braganza were confiscated and the family fled to Castile. The family returned in 1498 and had all their property