You probably were not lucky enough to snag an invitation to the royal wedding at Windsor recently, but you may be one of an estimated 5 million to 10 million people who are related to Prince Harry, Prince William and Kate Middleton. You could strike gold or hit a dead end. It’s the unlikely side of the family that will most often bear fruit – one client's ancestors came from an unassuming background working at a railway station in Nottingham, but she turned out to be descended from Edward III through the same line as the Duchess of Cambridge!