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
Isabel, Duchess of Braganza Isabel, Duchess of Braganza "Dona" Isabel, Duchess of Braganza ("née" Isabel Inês Castro Curvello de Herédia; born 22 November 1966), is a Portuguese businesswoman who married Duarte Pio, Duke of Braganza, the current pretender to the defunct Portuguese throne. Born to descendants of Portuguese nobility, Castro Curvello de Heredia worked as an assets manager prior to her marriage. Since marrying Duarte Pio, Isabel has left the professional world, devoted her attention to her family, and become patron to several Portuguese charities and non-profit foundations. She and her husband have had three children together, thus securing the continuation of the House