House of Braganza great difficulty under the reign of King João II. By the tenure of the third duke, Fernando II, the House of Braganza was undoubtedly one of the greatest noble houses of Portugal and Iberia as a whole. Fernando II continued the House's legacy of acquisition and gained the title of Duke of Guimarães. To the Duke and the House's downfall, however, King João II's reign concerned itself with the royal consolidation of power and the diminishment of the nobility. In his mission to centralize power, the King executed many nobleman of the great houses of Portugal, alongside confiscating their properties
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,