King John, Henry III and England's Lost Civil War

How the actions of two very different kings both threatened and created the English way of life, ultimately putting the country on the path to civil war.
 
Within five years of his accession to the powerful Plantagenet throne, King John’s grip on the family holdings was loosening. Betrayal against his father and brother, the murder of his nephew, and breaking promises made to his supporters were just some of the accusations levelled against him. When Philip II conquered Normandy, the chroniclers believed that an ancient prophecy was fulfilled: that in this year the sword would be separated from the sceptre. For the first time since 1066, England’s rule over the ancestral land was over.
 
When John died in 1216, more than half of the country was in the hands of the dauphin of France. Never had the future of the Plantagenet dynasty looked more uncertain.
 
As the following pages will show, throughout the first eighteen years of the reign of Henry III, the future direction of England as a political state, the identity of the ruling family and the fate of Henry II’s lost empire were still matters that could have gone either way. For the advisors of the young king, led by the influential regent, William Marshal, 1st Earl of Pembroke, the effects of John’s reign would be long and severe. Successful implementation of the failed Magna Carta may have ensured his son’s short-term survival, yet living up to such promises created arguably a more significant challenge.