Mrs. Fitzherbert, also known as Princess Fitz and A Court Secret, is a 1947 black and white British historical drama film directed by Montgomery Tully and starring Peter Graves, Joyce Howard and Leslie Banks. It depicts the relationship between George IV and Maria Fitzherbert. It is an adaptation of the 1945 novel Princess Fitz by Winifred Carter Whilst promotional material summarises the plot as the love affair between a prince and a "commoner", Mrs Fitzherbert falls far short of the definition of a "commoner" and would best be described as "lower aristocracy".