Isabella of Angoulême Isabella of Angoulême Isabella of Angoulême (, ; c. 1186/1188 – 4 June 1246) was queen consort of England as the second wife of King John from 1200 until John's death in 1216. She was also suo jure Countess of Angoulême from 1202 until 1246. Isabella had five children by the king, including his heir, later Henry III. In 1220, Isabella married Hugh X of Lusignan, Count of La Marche, by whom she had another nine children. Some of Isabella's contemporaries, as well as later writers, claim that Isabella formed a conspiracy against King Louis IX of France in 1241,
Isabella of Portugal, Duchess of Burgundy Isabella of Portugal, Duchess of Burgundy Isabella of Portugal (22 February 1397 – 17 December 1471) was Duchess of Burgundy as the third wife of Duke Philip the Good. Born a Portuguese "infanta" of the House of Aviz, Isabella was the only surviving daughter of King John I of Portugal and his wife Philippa of Lancaster. Her son by Philip was Charles the Bold, the last Valois Duke of Burgundy. Isabella was the regent of the Burgundian Low Countries during the absence of her spouse in 1432 and in 1441–1443. She served as her husband's representative in negotiations with England