Barons' War covers the two major battles of Simon de Montefort - Lewes and Evesham., providing a new take on a rarely covered period of English history. Interestingly, these battles take place in a unique period of English military history when the long bow had not gained its predominance on the English battlefield and cavalry was still the most lethal weapon in the medieval English arsenal. These two battles are the bookends of Simon's brief period as the power broker of England. Lewes takes place in 1264 and pits Simon with the support from many of the prominent barons against Henry III and his royalist faction. His victory and imprisonment of Henry made him king in all but name The second battle, Evesham, takes place one year later and finds Simon in a weakened condition facing the much more dangerous Prince Edward and the treachery of his own barons. It would be Simon's last battle.