Well, grandmaw, as I am female
Somehow in link surfing I ran across the royal descents of famous people page. As I am related to more than a dozen people named on the page, though some of the links to older royalty are pretty tenuous IMHO, I seem to be related to myself.
I remember discussions here about how few real ancestors we each actually have as we get interrelated back to one another the further back we end up going. [though I am personally amused at now being related to Ivan the Terrible. Maybe I’ll have to make a boyarina SCA persona]