The 'Saxon' Becket
Was there ever any debate about Becket being a Norman rather than a Saxon? I read a quote by Jean Anouilh where he claims that he wrote the play thinking that Becket was a Saxon collaborator, and only found out afterwards that Becket was Norman.
If so, it's a rather stupid mistake someone to make even without knowing the history, especially for a Frenchman, since "Becket" is obviously a French-sounding rather than a Germanic name (the Irish writer Samuel Beckett claims Norman ancestry too, for instance). So I'm guessing that Anouilh just took the artistic license from the get-go and make it look like an innocent error.
As is often the case, great play, terrible history.