ブーヴィーヌの戦い
He drew support from Philip Augustus in his conflict against Renaud de Dammartin, leading to Renaud's 1212 alliance with John. Philip was later a combatant on the victorious French side in 1214 at the Battle of Bouvines. He took a mace to William Longsword, Earl of Salisbury, at an important moment in the battle, leading to the Earl’s capture.