Royal families, anyone?

after king henry the eighth had died, he had three heirs; princess mary (who never married), king edward (who died at an early age and also never had any children), and elizabeth, who was queen for forty plus years, but she never had any children either!! so i was wondering..... who became royalty after the bloodline of king henry the eighth had died out? was it a distant cousin or something? are the desendants of those cousins ruling over england today?