Keen local historian Jon Gunson has compiled this series entitled Friday Knight - knights who fought at the Battle of Lewes - giving each a brief biography.
Of course that is not his coat of arms; he had none. William was a clerk, and probably a cleric. He was paymaster to Henry III’s knights and serjeants, which is why I have borrowed the badge of the (now defunct) Royal Army Pay Corps. William died of his wounds, shortly after the battle - one of the very few fatal casualties whose names we know, and a useful reminder of the difference between then and now. There were very few non-combatants in a medieval campaign.