While Corday was a young girl, her older sister and their mother, Charlotte Marie Jacqueline Gaultier de Mesnival, died. Her father, Jacques François de Corday, Seigneur d'Armont (1737–1798), unable to cope with his grief over their deaths, sent Corday and her younger sister to the Abbaye aux Dames convent in Caen, where the former had access to the abbey's library and first encountered the writings of Plutarch, Rousseau and Voltaire. After 1791, she lived in Caen with her cousin, Madame Le Coustellier de Bretteville-Gouville. The two developed a close relationship, and Corday was the sole heir to her cousin's estate.