Une vieille maîtresse (An old mistress) is an 1851 novel by the French writer Jules Barbey d'Aurevilly.
It tells the story of a wayward dandy who falls in love with a young woman but is unable to fully leave his former mistress behind.
The book was published by Alexandre Cadot in three volumes, with 327, 316 and 341 pages respectively.
[1] It was the basis for the 2007 film The Last Mistress directed by Catherine Breillat.
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