Mr Scobie added: “That’s of course behind Prince Charles, Prince William, Prince George, Charlotte, Louis, Harry, Archie and then the new arrival.
“That pushes Prince Andrew down one space but I think when it comes to new faces, new blood in the family, I think people are always happy to step aside.
“He will be, or she will be Prince Charles’s fifth and the Queen and Prince Philip’s 10th of 11th great-grandchild because there’s kind of a race going on here because Zara Tindall could also be giving birth around the same time.
“So it will be interesting to see who comes first.”
