The Second Barons' War is a civil war in England between the forces of a number of rebellious barons led by Simon de Montfort, against the Royalist forces led by Prince Edward (later Edward I of England).
"Remember that the people you are following didn’t know the end of their own story. So they were going forward day by day, pushed and jostled by circumstances, doing the best they could, but walking in the dark, essentially."