 FACT: Lord Rothbone would not have had to kill 10 members of the  Royal family, but at least 20 to gain the throne: The Prince of  Wales, his sons Albert Victor and George; Prince Arthur and his son  Arthur Jr.; Prince Alfred and his son Alfred Jr.; Prince Leopolds  son Prince Charles; and the Princes Christian Victor and Albert  (nephews of the queen). Because British royal rule is not salic  (meaning passed down along the male line, but rather, through  immediate family), following the deaths of these people each of  Queen Victorias untitled daughters would assume the throne in  turn; Princess Louise, Princess Helena, and finally Princess  Beatrice. Had these people been killed, the crown would have passed  on to the eldest daughter of the Prince of Wales, Victoria, and,  following her death, about 11 of her cousins in succession. Rathbone  would actually have been 21st in line; not far from Roys 20th in  line jibe.