Borrowed Plumage (1917)

The Earl of Selkirk and his family learn of the impending arrival of American pirate John Paul Jones, they flee their castle, leaving behind Nora, the kitchen maid. Left alone in the house, Nora dons the clothes of her mistress and parades herself about the castle until the arrival of the king's light infantry. Because they mistake her for the lady of the house, she invites them to be her guests.