John, King of England treatment of many of England's most powerful nobles. Although both John and the barons agreed to the " peace treaty in 1215, neither side complied with its conditions. Civil war broke out shortly afterwards, with the barons aided by Louis of France. It soon descended into a stalemate. John died of dysentery contracted whilst on campaign in eastern England during late 1216; supporters of his son Henry III went on to achieve victory over Louis and the rebel barons the following year. Contemporary chroniclers were mostly critical of John's performance as king, and his reign has since been the subject
Isabella of Portugal, Queen of Castile Isabella of Portugal, Queen of Castile Isabella of Portugal ("Isabel" in Portuguese and Spanish) (1428 – 15 August 1496) was Queen consort of Castile and León. She was the mother of Queen Isabella I "the Catholic". She was born as a scion of a collateral branch of the Aviz dynasty that had ruled Portugal since 1385. Her parents were John, Constable of Portugal, the youngest surviving son of John I of Portugal, and his half-niece and wife, Isabella of Barcelos, the daughter of the first Duke of Braganza, who was an illegitimate son of the king. Isabella's father held some