The beautiful Princess Vasila, an orphan, who has been looked after by Baroness von Bergstein in a Grace and Favour house, is astonished when an Equerry arrives to take her to Windsor Castle to see the Queen. She is not told until she arrives that Prince Gadelov of Saralovia, which is a small Balkan State, has appealed to Queen Victoria to give him a Royal British wife so that he can be protected from the grasping Russians.