Æthelwealh was killed in around 685 by Cædwalla, at the time a prince of the Gewisse tribe of modern-day Oxfordshire, who had been operating as bandit in Sussex.
Æthelwealh foi asasinado ao redor de 685 por Cædwalla, naquela época príncipe de Gewisse, no actual Oxfordshire, que estivera actuando como bandido en Sussex.