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According to Ancestry, Richard Wenham was my 16th great-grandfather, so I'm following all this with much interest. However, my first attempt at building the Ancestry tree resulted in William the Conqueror as my 45th ggf, which seems highly unlikely. I've also ended up related to  Aethelwulf, King Alfred and assorted other persons of note, all highly dubious. I'm awaiting my DNA results but, bearing in mind some of the comments I've seen on this site, am now expecting something along the lines of those allergy tests that tell you little of worth. Hoping this isn't the case.