Biography: Max Gesner Beauvoir was a Haitian biochemist and houngan. Beauvoir held one of the highest titles of Voudou priesthood, "Supreme Servitur" (supreme servant), a title given to Houngans and Mambos (Voudou priests and priestesses) who have a great and very deep knowledge of the religion, and status within the religion. As Supreme Servitur, Max was seen as a high authority within Vodou.