The "Anglo-Saxon Chronicle" does not name the Viking leaders, but it does state that "Hingwar and Hubba" (probably Ivar and Ubba) later killed King Edmund of East Anglia. Ubba was also named as a leader of the army in Northumbria by Abbo of Fleury and by the "Historia de Sancto Cuthberto". Symeon of Durham lists the leaders of the Viking army as "Halfdene Inguar [Ingvar, Hubba, Beicsecg, Guthrun, Oscytell , Amund, Sidroc and another duke of the same name, Osbern, Frana and Harold."