Now Isabella's feelings for her husband and Despenser turned from mistrust to loathing. But there was one glimmer of hope. The French King was willing to negotiate. So Isabella cleverly put herself at her husband's disposal as the perfect emissary to her brother, the King of France. She had been so patient in the face of provocation that Edward and Despenser seized on this solution, believing she could be trusted to return like a loyal lapdog. And so, on 9th March 1325, Isabella left England for Paris. Isabella successfully negotiated a truce between England and France. Then she persuaded Edward that their 12-year-old son, the heir to the throne, should be sent to Paris to seal the agreement by paying homage to the French King.