On one hand, it is possible that, following William's death, Hagrold seized control of parts of the Cotentin with foreign support, and extended his authority to Bayeux. On the other hand, Hagrold may have operated in the context of aiding the Normans of Rouen to oppose the Franks. Although he likely defended Bayeux from Louis and Hugh in 944, Hagrold's capture of Louis the following years suggests that he volunteered to assist Hugh against the king.
Hugh
Louis