The English similarly defeated France at the prior Battle of Crécy, as well. They are not great counterexamples in the "Knight vs Peasant" argument because you

The English similarly defeated France at the prior Battle of Crécy, as well. They are not great counterexamples in the "Knight vs Peasant" argument because you're talking about an entire English army led by an English prince. In the slightly larger-scope argument of knights vs footmen in combat, sure, it's a very good example.