f To Choose One Easter from Three: Oswiu’s Decision and the Northumbrian Synod of ad 664

Contrary to the traditional interpretation of the Synod of Whitby, which (following Bede) has always regarded Oswiu of Northumbria’s decision as between two ecclesiastical factions, ‘Celtic’ and ‘Roman’, this article suggests that the ‘Roman’ faction itself was split, thus allowing a reappraisal of the synod’s significance.