Barbara Yorke even raises the possibility that Swithhelm was in some way accessory to the murder and that he and his brother Swithfrith were the two brothers portrayed by Bede.
Barbara Yorke mesmo levanta a posibilidade que Swithhelm tivese algo que ver co asasinato e que el e o seu irmán Swithfrith fosen os dous irmáns do relato de Beda.