House of Bourbon-Braganza House of Bourbon-Braganza The House of Bourbon-Braganza (Spanish: Casa de Borbón-Braganza; Portuguese: Casa de Bourbon-Bragança) was an Iberian noble house that had its origins in a royal marriage arranged in 1785 between Infante Gabriel of Spain (1752–1788) and Infanta Mariana Victoria of Portugal (1768–1788). It was a short marriage: they both died three years later, in Madrid, with smallpox. Their surviving son, Infante Pedro Carlos of Spain and Portugal (1786–1812), was brought up in the Portuguese court, first in Lisbon and, after 1807, in Rio de Janeiro. Until 1793, he was the only grandson of Queen Maria I, therefore considered
House of Orléans-Braganza imperial family's banishment. The net year Prince Gaston and Prince Pedro de Alcântara traveled back to Brazil after 31 years of imposed exile for the reburial of the Emperor and the Empress in Cathedral of Petrópolis. Isabel, the Emperor's daughter and heir and "de jure" Empress of Brazil was too ill to travel and died in this same year. She was the last pure Braganza heir to the Brazilian throne. After her death, the claim passed to her grandson Prince Pedro Henrique of Orléans-Braganza, Luis's eldest son. The following year, Prince Gaston, Count of Eu, eventually died a natural death