They go back 940 years some of them, most are since 1066.
Hmm, 1066 (William the Conqueror and all that) is 940 years ago. But the British Royals are so intermixed with royals from all over Europe, they are hardly British at all, at least nothing like this guy.
Of course since mitochondrial DNA comes from the mother only, this guys N-great grandmother could have been raped by one of those Normans, or earlier by raiding Vikings. What color is his hair?