Name Etienne Guibourg | ||
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Born 1610 (age 76) Died January 1686 (aged 76) Similar La Voisin, Giulia Tofana, Marie Lafarge | ||
The Abbé Étienne Guibourg (c. 1610 – January 1686) was a French Roman Catholic abbé and occultist who was involved in the affaire des poisons, during the reign of Louis XIV. He has been variously described as a "defrocked" or "renegade" priest and is said to have also had a good knowledge of chemistry. He is best known for performing a series of Black Mass rituals with Catherine Monvoisin for Madame de Montespan.
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Les cachots de la citadelle
Early life and ecclesiastic career
Guibourg claimed to be the illegitimate son of Henri de Montmorency.
He was the sacristan of the Saint-Marcel church at Saint-Denis which was later destroyed during the French Revolution but described as being "the most beautiful of the parish churches of the town of Saint-Denis". He was formerly the chaplain to the Comte de Montgomery.
Despite his position, he is said to have kept a long-term mistress, Jeanne Chanfrain, with whom he had several children.
Black Masses
According to later accounts, confessions and trials, Guibourg performed a series of Black Masses with Catherine Monvoisin (known as La Voisin). The most famous of these were performed for Madame de Montespan around 1672-3. Montague Summers gives an account of one such ritual:
Summers provides a further account of the incantation used by Guibourg himself:
Accounts suggest that La Voisin performed rituals with a number of priests (including at least one whose work was uncovered by Church authorities, forcing him into exile) as well as Guibourg. It is unlikely Guibourg took part in all of La Voisin's Black Masses. Nevertheless, upon her arrest, investigators discovered the corpses of 2,500 infants buried in her yard, most likely sacrificed the same way as in Guibourg's ritual. It was alleged that La Voisin had paid prostitutes for their infants for use in the rituals.
Arrest and sentence
In 1680, Françoise Filastre, under interrogation in connection with the poison affair, claimed that Guibourg had performed Black Masses. Guibourg was arrested and confessed to this and to other crimes.
He was sentenced to life imprisonment and sequestration and died in prison in 1686.