Geoffroi de Charny
Sir John Chandos was a close friend and biographer of Edward, the Black Prince, the eldest son of King Edward III of England.  Chandos was a famous knight himself.   He was an educated man and wrote down the events of a great meeting of both sides before the Battle of Poitiers. He wrote that at that meeting Sir Geoffroi tried to avoid a great bloodshed by proposing a smaller battle where 100 knights on each side would do battle with each other and the outcome would decide the battle.  Chandos writes that Charny was trying to find an honorable solution to avoid a great many more deaths.  The Black Prince refused that offer.  Charny’s predictions turned out to be true and indeed a great many nobles on both sides lost their life that day, including de Charny himself.