House of Braganza In an attempt at reconciliation with the Brigantine House, King Philip I renewed the title of Constable of Portugal, which João I had held previously, to the Duke's first son, Teodósio II, alongside other title and land grants to the Duke and the House. João I's daughters, Maria, Serefina, Querubina, and Angélica, were some of the most eligible ladies of Portugal and all Iberia, though the only one to marry was Serefina of Braganza, who married Castilian Juan Fernandez Pacheco, 5th Duke of Escalona. The Duke's oldest son and successor, Teodósio II, famously fought in the Battle of Alcácer Quibir
House of Braganza of Marquis of Vila Viçosa and Count of Neiva. Fernando I's children, by his wife, Joana de Castro, Lady of Cadaval, continued to enlarge the influence of the House of Braganza. Of his nine children, all six who survived to adulthood established themselves either through positions or marriages, though the actions of King João II would seek to weaken their influence. Fernando I's first son and successor, Fernando II, was initially a bright and popular nobleman, but his conflict with King João II would see his and the House's downfall. His second son, João of Braganza, 1st Marquis of Montemor-o-Novo,