I decided to create a thread about monarchs with interesting bloodlines.

I'll start with Ivan the terrible

1) Greek-Anatolian (grandmother Sophia Paleologi)
2) Serbian (great-great-grandmother Helena Dragash)
3) Armenian (Rita-Maria of Armenia)
4) Italian (various Italian princesses married Roman Emperors)
5) Hungarian...yet to be confirmed

Its interesting, the last Emperor of the Roman Empire, COnstantine Xi Dragash is the great-grand uncle of Ivan the Terrible.

Prince William (the one we got today) has a Romanian ancestor who is the brother of Vlad Dracul Tepes.