The Prince's Romantic Affairs(1958)

Morris the Tailor seeks to get even with Gilbert, Earl of Chen who has stolen a set of expensive clothes from him. Morris bumps into Princess Jenna and the two fall in love at first sight. But the king voices his opposition since Morris is from the grassroots. Gilbert suggests that Jenna's aunt adopts him as her foster son. In a split second, Morris is elevated to a royal and becomes the king's son-in-law.