A seventh grade student, BridgeAnne d’Avignon, and her 80 year old grandfather traced President Obama’s ancestry back to a common relative with most of the other presidents. They’re all related to the former King of England from 1199 to 1216, John “Lackland” Plantagenet.
You may remember John “Lackland” Plantagenet, or John of England from the characterization in Disney’s Robin Hood.
Yes, THAT Prince John. Aha.
According to BridgeAnne, the only former US president that does not share John “Lackland” Plantagenet as an ancestor is Martin Van Buren.