Yea, thought it were fairly common knowledge. What till to hear that all European royalty are inter-related with multiple cross over familial branches and marriages throughout the genealogical lines. And all former US presidents incl Trump (except 2 or 3 iirc) are also all provably related and descendants of a common ancestor ( King Charles or some such from the 12oo's). EDIT: My bad - King John that signed the Magna Carta in the 1200's.