The crusaders twice defeated Al-Mustansir's army, forcing him to sue for peace. According to the peace treaty, signed on 1November, Al-Mustansir agreed to fully compensate Louis' son and successor, Philip III of France, and Charles for the expenses of the military campaign and to release his Christian prisoners. He also promised to pay a yearly tribute to Charles and to expel Charles' opponents from Tunis. The gold from Tunis, along with silver from the newly opened mine at Longobucco, enabled Charles to mint new coins, known as , in the Regno.