After the barons left London the king renounced a portion of the Magna Carta that severely challenged Johns authority. It said that the barons could overthrow the king if he disobeyed any portion of the Magna Carta. This photo shows the Runnymede field where the Magna Carta is believed to have benn signed - can you find the three differences in this photo hunt puzzle?
Because of this defiance from King John, England was thrust into a civil war. The war subsided when John passed away from natural causes a year later.