La Voisin

Catherine Monvoisin, or Montvoisin, née Deshayes, known as "La Voisin" (c. 1640 – February 22, 1680), was a French fortune teller, poisoner and an alleged sorceress, one of the chief personages in the affaire des poisons, during the reign of Louis XIV.

Read more about La Voisin:  Background, Activity, Connection To Madame De Montespan, Investigation and Execution, In Fiction, Film, Manga