House of Braganza before his father and therefore did not succeed him. Afonso I's first daughter, Isabel of Braganza, married Infante João, Lord of Reguengos de Monsaraz, thus relinking the House of Braganza to the Royal House of Portugal. Isabel's strategic marriage proved successful, and produced four children, whose descendants would be some of the most important in Iberian history. Afonso I's last child and successor, Fernando I, Duke of Braganza, continued his legacy of prominence in the military and society. When Fernando I was born, in 1403, his grandfather, Nuno Álvares Pereira, ceded him the title of Count of Arraiolos. Fernando became
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