For all we know, Queen Elizabeth could be related to the Bavarian king...
Funny you should say that...
Wikipedia said:Franz is also the current heir-general of King Charles I of England and Scotland, and thus as "Francis II" is considered by Jacobites to be the legitimate heir of the Stuart kings of England, France, Scotland and Ireland. "HRM [sic] the Duke generally does not comment on issues concerning his familiar [sic] relationship to the Royal House of Stuart", a spokesman told the media.