In 1215 a group of English barons, dissatisfied with the weak and despicable King John, decided that they needed a new monarch. They wanted a strong, experienced man, of royal blood, and they found him on the other side of the Channel: astonishingly, the most attractive candidate for the crown of England was Louis, eldest son and heir of the king of France. In this fascinating biography of England's least-known "king"--and the first to be...