How many of us are, like Danny Dyer, related to William the Conqueror?

To the manor born ... Danny Dyer traces his regal roots in Who Do You Think You Are? Photograph: Stephen Perry/Wall to Wall/BBC

Danny Dyer was very proud to find out that he was a direct “legitimate” descendant of William the Conqueror on the BBC’s Who Do You Think You Are? But the programme (perhaps understandably) didn’t give us any statistical context. Approximately how many living people are likely to share the same status?

Chris Hughes, Leicester

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