Do you know which is the oldest satanic order to practice a Black Mass?

Question

I know it was practiced in late 1500s by Catherine de` Medici or in the 1600s by Catherine Monvoisin and Etienne Guibourg or in 1700s by the Marquis de Sade , and even mention by Joris-Karl Huysmans in his book , but realy , whats the name of the order?

Answer 1

Best Answer - Chosen by Voters

i think the first is credited wit Antwon le Vey the founder of the church of satan.