House of Braganza
The House of Braganza (Portuguese: Casa de Bragança; Portuguese pronunciation: [bɾɐˈɣɐ̃sɐ]), officially the Most Serene House of Braganza (Portuguese: Sereníssima Casa de Bragança), is an important imperial, royal, and noble house of Portuguese origin, a branch of the House of Aviz, and thus a descendant house of the Portuguese House of Burgundy. The House evolved from being powerful dukes of Portuguese nobility, to ruling as the monarchs of Portugal and the Algarves, from 1640 to 1910, and as monarchs of Brazil, from 1815 to 1889.
The House of Braganza was founded in 1442, when Afonso, 8th Count of Barcelos, illegitimate son of King João I of Portugal, of the House of Aviz, was made Duke of Braganza, as Duke Afonso I of Braganza, by his nephew, King Afonso V. The feudal Brigantine dukes quickly amassed a fortune in properties, titles, and power and by the time of Duke Fernando II, the House was the most powerful in all of Portugal and of the greatest houses of Iberia.
The House of Braganza became the reigning house of the Kingdom of Portugal and the Algarves in 1640, when João II, Duke of Braganza, was acclaimed King João IV by the Portuguese nobility and subsequently waged the Portuguese Restoration War. The House of Braganza was only recognized as the legitimate ruling house of Portugal by the House of Habsburg during the reign of King Afonso VI, though effective and official control of the kingdom was seized and established in the 1640s. The Braganzas were deposed from the Portuguese throne in 1910, when the Portuguese Republic was proclaimed.