The Imaginary Baron(1927)

Original title: Der Juxbaron

The film follows the comic (mis)adventures of a poor street musician, who is roped into posing as an eccentric nobleman. He and his antics are rapturously received by the members of a bourgeois family desperate to mingle with the aristocracy. The daughter of the family takes a fancy to the baron (in reality, merely a “joke baron”), assuming him to be immensely wealthy.