If the blueness of your blood concerns you, you should probably consult Gary Boyd Roberts' freshly updated The Royal Descents of 600 Immigrants to the American Colonies or the United States. Dick Eastman has a review and ordering info.
Among the notables with newly established royal roots are Madonna and actors Jake and Maggie Gyllenhaal. Coincidentally, Madonna is often called the "Queen of Pop," while Jake Gyllenhaal is often called "Tobey Maguire."
Be aware that Roberts might puncture your dreams of taking tea at Buckingham Palace.
A new indexed Addendum and a Coda outline descents from kings for nineteen additional immigrants, improves the lines of eighteen more, lowers the descent for eight others, fully disproves one, and suggests disproof for a further seven.