Sergeant François Bertrand, known as the Vampire of Montparnasse, was a sergeant in the French Army. He was arrested in 1849 for necrophilia and jailed for one year. In 1856, he moved to Le Havre. In
The Vampire, engraving depicting Sergeant François Bertrand, from the Mémoires de M. Claude, chef de la police de sûreté sous le Second Empire, c. 1880