Infanta Isabella of Coimbra (Isabella of Portugal) (1 March 1432 – 2 December 1455) was a Portuguese infanta and a queen consort of Portugal as the first spouse of King Afonso V of Portugal.
Isabella's father was the regent for her cousin Afonso V during his minority. Reportedly, Isabella and Afonso fell in love with each other. They were engaged in 1445, which caused a conflict between Peter of Coimbra and Duke Afonso of Braganza, who had wished for the monarch to marry his grandchild. Isabella was given the income of Santarém, Alvaiázere, Sintra and Torres Vedras at her wedding.
Marriage and Issue
Isabella and Afonso V were married on 6 May 1447. Both the bride and groom were fifteen. They had three children:
John II of Portugal (3 March 1455 – 25 October 1495): Succeeded his father as 13th King of Portugal.
Late Life
In 1448, the king took Afonso of Braganza as his advisor. Isabella's father died (suspected to have been killed), and her brother John was exiled. Isabella herself did not fall out of favour with the king, however, and she took control of the duchy of Coimbra until her brother returned to Portugal in 1454. In 1455, Isabella had her father honoured with a grand ceremony of exoneration at court and had him re-buried in a grand way. Shortly after this, she died at age twenty-three, possibly from poisoning.
* also an infanta of Spain and an archduchess of Austria,** also an imperial princess of Brazil,*** also a princess of Saxe-Coburg and Gotha, Duchess in Saxony,◙ Also a princess of Braganza,ƒ title of pretense
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