ブーヴィーヌの戦い
In 1204–05 Hervé supported the French side against the English in fighting in Normandy, Poitou and Touraine, and in 1209 would take part in the Albigensian Crusade. In 1214 he took part in the Battle of Bouvines, on the side of King John of England, later with John's intervention Hervé would obtain King Philip's pardon. In 1217 he would be involved in the French invasion of England.