Princess Zelda of Brienz in Switzerland is being harassed by her father to marry a king or prince of one of the small countries of Europe. Zelda is very beautiful and determined that when she does marry, it will be for love and only love. She runs away from home to see her cousin, Prince Johann II of Liechtenstein, who has always been very fond of her. She tells him that she is determined to find out the truth about a scandal that has been repeated ever since she was born. This was that her real father was the fourth Duke of Milverden from one of the foremost aristocratic families of England. She is also hoping to find the love of her life. To please her, the prince sends her to stay in London with an old friend of his, Lady Craven, so that she can discover for herself if she is really one of the Milvers.