Madame Leontine Pauline Aubert was a French cabaret singer. She was also the mistress of Benjamin Guggenheim, and both were travelling in first class on the Titanic, which they boarded at Cherbourg, France, on the evening of 10 April 1912, with Guggenheim, his chauffeur, valet and her maid, Emma Sägesser. At dinner, she made the acquaintance of Jack Dawson.
Behind the scenes
Her real surname was "Aubart", but is misspelled "Aubert" in some sources, including the film's credits.
Aubert survived in lifeboat 9, with her maid, Emma Sägesser.