Palace of the Dukes of Braganza Palace of the Dukes of Braganza The Palace of the Dukes of Braganza () is a medieval estate and former residence of the first Dukes of Braganza, located in the historical centre of Guimarães (Oliveira do Castelo), in the north-western part of Portugal. It was initiated between 1420 and 1422 by Afonso, Count of Barcelos, the illegitimate son of John I of Portugal (and future Duke of Bragança), after his marriage to his second wife. His prodigeny would occupy the space until the Dukes of Braganza moved to Vila Viçosa, abandoning the palace. The 16th Century marked the beginning of
Prince Luiz Gastão of Orléans-Braganza in Dreux. After his death, his sister Princess Pia Maria became the titular heir of her brother Pedro Henrique, until the birth of Pedro Henrique's son, also called Prince Luiz, in 1938. Prince Luiz Gastão of Orléans-Braganza Prince Luiz Gastão of Orléans-Braganza (; 19 February 19118 September 1931) was a member of the House of Orléans-Braganza, and was descended from the Brazilian Imperial Family. Prince Luiz Gastão was born at Cannes, France, the second son of Prince Luiz of Orléans-Braganza (1878–1920), and his wife, Princess Maria di Grazia of Bourbon-Two Sicilies (1978–1963). His father was the second son of Prince