Otto Von Hapsburg
So, he's related to several European Monarchs???
"Did you think that I would harm her?"-The Phantom
http://en.wikipedia.org/wiki/Otto_von_Habsburg
His great-grandfather was Franz Joseph's brother.
See ancestry near the bottom, and see on the right extended family, but at a glance I don't think this really answers your question, but it is still interesting. But with that ancestry he surely must be related to some current-day royals!