Manuel I of Portugal
Manuel's mother was the granddaughter of King John I of Portugal, whereas his father was the second surviving son of King Edward of Portugal and the younger brother of King Afonso V of Portugal. In 1495, Manuel succeeded his first cousin, King John II of Portugal, who was also his brother-in-law, as husband to Manuel's sister, Eleanor of Viseu.
Manuel I of Portugal
His relationship with the Portuguese Jews started out well. At the outset of his reign, he released all the Jews who had been made captive during the reign of John II. Unfortunately for the Jews, he decided that he wanted to marry Infanta Isabella of Aragon, then heiress of the future united crown of Spain (and widow of his nephew Prince Afonso). Ferdinand and Isabella had expelled the Jews in 1492 and would never marry their daughter to the king of a country that still tolerated their presence. In the marriage contract, Manuel I agreed to persecute the Jews of Portugal.