If there was a friendly relationship between Eanfrith and Cadwallon at first, however, it must not have lasted, since Bede reports that Eanfrith went to Cadwallon "with only twelve chosen soldiers" in an attempt to negotiate peace, but Cadwallon had him killed.
Se algunha vez houbo unha relación amigábel entre Eanfrith e Cadwallon ao principio, non durou por moito tempo xa que Beda reporta que Eanfrith foi até Cadwallon "con só doce soldados escollidos" nun intento de negociar a paz, pero Cadwallon mandouno matar.