Louise Antoinette Lannes, Duchess of Montebello (February 26, 1782, Paris – July 3, 1856, Paris) was the daughter of senator and financier François Scholastique, Count of Guéhéneuc. She was the sister of general Charles Louis Joseph Olivier, Count of Guéhéneuc.
On September 16, 1800, age 18 at Dornes she married general Jean Lannes (1769-1809), being his second wife. They had five children: four sons (named Napoléon, Alfred, Ernest and Gustave) and one daughter named Joséphine). After the death of Jean Lannes, the eldest son Napoléon succeeded in his titles and three others who used the courtesy title of baron. [1]