Magdelaine Chapelain (1651 – June 1724; also spelled Madeleine Chappelain[1]) was a French fortune teller and poisoner.
In connection to the Poison Affair, she was implicated because she had formerly employed Françoise Filastre as a maid.
Filastre was arrested upon her return from a trip to Auvergne (province) which had been paid for by Chapelin in December 1679.
Chapelain was also connected to Louis de Vanens, to whom she had rented a house.
[2][page needed] According to Frantz Funck-Brentano, she was imprisoned in Villefranche-de-Conflent, in Fort Libéria.