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 Braganza Afonso quickly became the King's preferred advisor. On 30 December 1442, the Duke of Coimbra, still the King's regent and thus acting in his name, created Afonso as the Duke of Braganza, as a gesture of good will and reconciliation between the two brothers. Afonso's elevation to the dukedom, the highest level of nobility, marked the foundation of the House of Braganza, which was to become a key family in Portuguese history. As a result of the hard work and success of Afonso I, his children all secured successful positions and lived privileged lives. Afonso I's first son, Afonso of