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 Castile, Duchess of York elder sister, Constance (d. 1394), who after the death of their father in 1369 claimed the throne of Castile. Isabella accompanied her sister to England, and on 11 July 1372, at about the age of 17, married John of Gaunt's younger brother, Edmund of Langley, 1st Duke of York, fifth son of King Edward III and Philippa of Hainault, at Wallingford, Oxfordshire, as part of a dynastic alliance in furtherance of the Plantagenet claim to the crown of Castile. According to Pugh, Isabella and Edmund of Langley were 'an ill-matched pair'. As a result of her indiscretions, including an affair