In 674, according to Stephen of Ripon, Wulfhere "stirred up all the southern nations against ", but he was defeated by Oswiu's son Ecgfrith who forced him to surrender Lindsey, and to pay tribute.
En 674, de acordo a Stephen de Ripon, Wulfhere «provocou a todas as nacións do sur contra », pero foi derrotado polo fillo de Oswiu, Ecgfrith, que o obrigou a render Lindsey e a pagar tributo.