The alleged Synod of Whitby was called by King Oswiu of Northumbria in 663 AD and held in 664 at Saint Hilda's double monastery of Streaneschalch, at Whitby.

Among others in attendance was Saint Wilfrid (634-710).

It constituted a milestone in the history of the church in Britain, as delegates from the North and the South came together to debate the controversy over the date of Easter, and whether the Celtic or Roman church should have ascendency over Northumbria.

The Venerable Bede described the proceedings in detail.

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