Madame Delphine Lalaurie is one of the most notorious figures in New Orleans history. She was a wealthy socialite who owned an infamous mansion located on Royal Street in the French Quarter, where she tortured her slaves and conducted cruel experiments upon them. The gruesome details of her crimes were uncovered after a fire broke out at the house in 1834, revealing a torture chamber filled with horrific evidence. After her arrest, Madame Lalaurie fled to Paris where she died in 1842; however, it remained unknown for many years where exactly she was buried.
In 2010, researchers from Tulane University's Department of History tracked down Madame Lalaurie’s final resting place to Cimetière de Montmartre Cemetery on the outskirts of Paris. In 2012 they visited the cemetery and confirmed that there was indeed a grave belonging to Madame Delphine LaLaurie - marked simply with a small stone bearing only her name and dates - beneath which lies both horror and mystery.