The pope, however, exhorted him to break the marriage on grounds of consanguinity, which he obediently did (1074), founding, in penitence, a priory at Morlaas dependent on the Abbey of Cluny.
Despite the pope's advice, he chose to end the marriage based on familial connections, which he subsequently followed (1074). As an act of penance, he founded a monastery at Morlaas, placing it under the supervision of the Abbey of Cluny.