Ecgfrith was unable to recover Oswiu's position in Mercia and the southern kingdoms, and was defeated by Wulfhere's brother Æthelred in a battle on the River Trent in 679.
Ecgfrith non foi quen de recuperar a posición de Oswiu en Mercia e os reinos do sur, sendo derrotado polo irmán de Wulfhere Aethelred nunha batalla no río Trent en 679.