A charter of Swæfheard's dated 691 is also of interest as it indicates that Æthelred had invaded Kent; it has been suggested that Æthelred intended to place Wilfrid in the Archbishop's seat at Canterbury, but if so he was unsuccessful.
Unha carta de Swaefheard datada en 691 é tamén de interese, pois indica que Aethelred invadira Kent; suxeriuse que Aethelred pretendía colocar a Wilfrido na cadeira do arcebispo de Canterbury, pero si é así non tivo éxito.