Did Edward III and the Black Prince break wartime norms?

Were Edward III and the Black Prince considered to have broken cultural norms in their treatment of prisoners and civilians?

Yes; their conduct could fall outside contemporary expectations, although victory, reputation, and selective pardons softened later memory of it.

A viewer asks whether Edward III and the Black Prince broke contemporary norms regarding prisoners and civilians. Their conduct fell outside what other self-described civilized powers treated as normal practice, although the Black Prince retained a favorable public reputation. Military success made it difficult for defeated peers to challenge them, and selective pardons for useful people helped preserve a chivalric image. Later heroic memory can therefore obscure the harsher conduct of their campaigns.