Jack Straw.

Jack Straw (Warwick) is an iceman who becomes a waiter to be closer to the girl (McComas) he is interested in. Later, to impress her, he impersonates an Archduke from Pomerania. A Count from Pomerania (Brower) who is the ambassador arrives and learns of the long-missing son of royalty. The girl's mother (Ashton) learns of the trick being played by Jack. Just when Jack is exposed as being a fraud, it turns out that he is the genuine article.