I remember a newpaper article from somewhere in the UK showing the most British Briton in the British Isles. It had been determined that he was from a family who had interbred least often with people from outside the British Isles (or something along those lines)
Anyone else remember? I assume it was done by analysis of his DNA, I was just looking for a site for this vague memory.
Most likely it was connected with the big research project by the Centre for Population Genetics and Human Health at UCL on Viking genes in the UK. One widely reported offshoot of the work was the claim that the Welsh were ‘the “true” Britons’. Here is the BBC news report about it. But that was about the wider population, not a specific individual.
Alternatively, you could be thinking of the 1997 news story about the ‘descendant’ of Cheddar Man.
I seem to remember that they tested a subset of the population somewhere in the south of England and found that there was someone who was loosely related to “Cheddar Man”.