House of Braganza Luís, as D. Pedro V had no children. D. Luís I was succeeded in 1889 by his son D. Carlos I. Carlos I's popularity dramatically declined after an unfavorable deal from an incident known as the British Ultimatum, whereby the Portuguese Empire ceded its claim to territories (known as the "Pink Map") between Portuguese West Africa and Portuguese East Africa to the British. Pursuant to his unpopularity, the monarchy became increasingly unpopular in the country. King Carlos I was assassinated in 1908 together with his eldest son, D. Luís Filipe, Prince Royal of Portugal and Duke of Braganza, by republicans.
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