Catarina, Duchess of Braganza Catarina, Duchess of Braganza Infanta Catherine of Guimarães, Duchess of Braganza by marriage (Portuguese: Catarina; , 18 January 1540 – 15 November 1614) was a Portuguese "infanta" (princess) claimant to the throne following the death of King Henry of Portugal in 1580. She was the second daughter of Infante Edward, 4th Duke of Guimarães (sixth son of Manuel I of Portugal) and Isabella of Braganza, she was married to John, 6th Duke of Braganza, a descendant of earlier Portuguese monarchs, and head of the most important aristocratic House in Portugal. The duchess had several children, of whom Teodósio of Braganza,
House of Orléans-Braganza title he had and his dynastic rights as heir of his mother passed to his brother, Prince Luís of Orléans-Braganza, who became Prince Imperial of Brazil. However, years later, after Pedro's death in 1940, his eldest son did not accept his father's resignation and again claimed the Brazilian throne in conflict with Prince Pedro Henrique of Orléans-Braganza, son and heir of Prince Luís, dead in 1920. Thus began a dispute for the crown of Brazil. The descendants of Prince Pedro became known as the "Petrópolis Branch", and the descendants of Prince Luís as "Vassouras Branch". After the resignation of Pedro