House of Braganza Manuel II named as his heir Duarte Nuno of Braganza, grandson of Miguel. Duarte Nuno, now Duke of Braganza, remained the Braganza pretender until his death in 1976. In 1942, he married a great-granddaughter of Emperor Pedro II of Brazil, uniting the two lines of the House. In 1950 Portugal repealed the law of exile against the Braganzas, and D. Duarte Nuno moved to the country in 1952. Duarte Nuno was succeeded as pretender by his son, Duarte Pio of Braganza (born 1945). Duarte Pio served in the Portuguese Armed Forces and took the customary oath of allegiance to the
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