Isabella of Angoulême (died 1246)

Queen of England 1200–16, as the second wife of King John. His loss of Normandy was popularly blamed on his infatuation with her, but this did not last. She was imprisoned in Gloucester 1214 until his death 1216 when she returned to France and married a former lover. She inherited Angoulême in her own right, and persuaded her son, Henry III to wage an abortive war in France 1241. They were defeated and Isabella was forced to flee to an abbey 1244 where she remained until her death.