Claim: Madame dr Brinvilliers, a French aristocrat accused of three murders by poison, has been written about in many poems and stories, including fictional accounts of her life by Arthur Conan Doyle; a poem about poisoning by Letitia Elizabeth Landon, and an account of her capture and burning by Judith Merkle Riley.
Evidence: Marie-Madeleine-Marguerite d'Aubray, Marquise de Brinvilliers (22 July 1630 – 17 July 1676) was a French aristocrat(a noble woman)accused of three murders. According to the charges laid against her in 1675, in 1666 Marie-Madeleine-Marguerite de Brinvilliers had conspired with her lover, Captain Godin de Sainte-Croix, also called the Chevalier de Sainte-Croix, to poison her father Antoine Dreux d'Aubray, and in 1670 she had likewise killed two of her brothers, Antoine and François d'Aubray, in order to inherit their estates. In her 1836 poem ., Letitia Elizabeth Landon envisages the poisoning of a discarded lover. Her capture and burning is mentioned in The Oracle Glass by Judith Merkle Riley, also the poisoning of the poor is echoed by the main character, Genevieve's, mother.