In addition to fighting the Second Barons' War, Henry III made war against Saint Louis and was defeated during the Saintonge War, yet Louis IX did not capitalise on his victory, respecting his opponent's rights.
Udover at kæmpe under den anden baronkrig, førte Henrik 3. krig mod Ludvig den Hellige, og blev besejret i Saintongekrigen, men Ludvig udnyttede ikke sin sejr, da han respekterede sin modstanders rettigheder.