Infanta Isabel Maria of Braganza of John VI of Portugal and the last grandchild of Maria I of Portugal. She is buried in the Royal Pantheon of the House of Braganza. Infanta Isabel Maria of Braganza Infanta Isabel Maria of Braganza (); Queluz, 4 July 1801 – Benfica, then Belém, 22 April 1876 was a Portuguese "infanta" (princess) daughter of King John VI of Portugal and his wife Carlota Joaquina of Spain. She acted as regent for two years. Her full name was Isabel Maria da Conceição Joana Gualberta Ana Francisca de Assis de Paula de Alcântara Antónia Rafaela Micaela Gabriela Joaquina Gonzaga de Bragança
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