Portugal | Peter Pan | Peter Gabriel | Peter Jackson | Peter | Saint Peter | Peter Paul Rubens | Peter Sellers | Peter the Great | Blue Peter | Peter Frampton | Peter Greenaway | Portugal national football team | Peter Brook | Peter Lorre | Peter Ustinov | St. Peter's Basilica | Sporting Clube de Portugal | Oeiras Municipality, Portugal | Peter Kropotkin | St. Peter | Peter Fonda | Peter Kay | Peter David | Peter Mandelson | Peter O'Toole | Peter Allen | Lord Peter Wimsey | Peter Sellars | John VI of Portugal |
As a result, he was the half-brother of the powerful Galician nobleman Fernando Ruiz de Castro, the Castilian queen Juana de Castro (wife of King Peter of Castile) and the controversial Inês de Castro, mistress and consort of King Peter I of Portugal.
The House of Braganza originated with Afonso, 1st Duke of Braganza, an illegitimate son of John I of the House of Aviz who, in turn, was the son of Peter I of the House of Burgundy, which was founded 300 years earlier in 1143 by Afonso Henriques, first king of Portugal.