Isabella of England Isabella of England Isabella of England (1214 – 1 December 1241) was Holy Roman Empress, Queen of the Germans, and queen consort of Sicily. She was the fourth child and second daughter of John, King of England and Isabella of Angoulême. At a friendly meeting at Rieti, Pope Gregory IX suggested to Emperor Frederick II that he marry princess Isabella, a sister of King Henry III of England. At first Frederick II was concerned to lose his French allies; but when he realized that an English marriage might end the ongoing Anglo-French feud and constitute an important step towards the
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