Bishops reverse the pope's marriage ruling

Count Geoffrey needs Louis VII to invest Henry as duke of Normandy while also seeking a marriage that would strengthen his son against the French king. The Vexin between Normandy and the French royal domain makes Henry's titles and marriage prospects a direct security concern for Louis. Behind the scenes, bishops work to undo Pope Eugene III's supposedly permanent validation of Louis and Eleanor's marriage. Bernard of Clairvaux lends authority to that reversal despite his pronounced hostility toward women. He treats Eleanor's territory as less important than his claim that the union is incestuous and spiritually corrupt, showing how ecclesiastical arguments could legitimize a major dynastic reversal.