Harry has the Windsor mouth (developed from the Hapsburg lip), his red hair and fair skin probably come from his maternal Uncle - the likelyhood is that he is Charles' son because Dianna was required to produce "heir and spare" before she was aloowed to go and play with her toys.
Callous way of looking at it, I know, but the real problem was not the affairs she engaged in - it was the way she used them to embarress the Royal family.
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