In 1304, he fought at the Battle of Mons-en-Pévèle and served at the siege of Lille. He was chosen as one of the French ambassadors who negotiated an end to the war.
In 1304, he fought at the Battle of Mons-en-Pévèle and served during the siege of Lille. He was selected as one of the French diplomats who negotiated a peace agreement to end the war.