Is reputed to be the half-brother of his predecessor, Earpwald, sharing the same mother, whose name is not known. He was in exile in Gaul before succeeding, suggesting that there were family tensions. He is credited with founding the see of Dunwich, c.631, with Felix as bishop. Bede's account is that he retired to a monastery, handing over the kingdom to his kinsman Ecgric, who had previously ruled a part. When the East Anglians were attacked by the redoubtable Penda of Mercia, they persuaded Sigeberht to leave his cell and lead them once more into battle. He refused to bear arms and was killed, staff in hand, together with Ecgric, in the subsequent defeat.
Subjects: British History — Christianity.