 John Edward Lloyd argues that the primary reason for the British bishops' rejection of Augustine – and especially his call for them to join his missionary effort – was his claim to sovereignty over them, given that his see would be so deeply entwined with Anglo-Saxon Kent.The death of hundreds of British clerics to the pagan king Æthelfrith of the Kingdom of Northumbria around 616 at the Battle of Chester was taken by Bede as fulfillment of a prophecy allegedly made by Augustine of Hippo that the British church would receive war and death from the Saxons they refused to proselytise.Despite the inaccuracies of their system, the Britons did not adopt the Roman and Saxon "computus" until induced to do so around 768 by "Archbishop" Elfodd of "Gwynedd".