Catherine Duvalier, aka Mother, appears in Telepath RPG: Servants of God.
Years ago, Catherine and her husband, Alder, moved to Ravinale from the north and they became the two Senators Duvalier. During the Cult's coup d'état, the Senators and their son were thrown into prison. At some point in The Cult's custody, Catherine and her husband were forced to confess in wrongdoings against the Cult and then were set to be executed.
"The law makes no sense, Fariq! If it is truly God's will that only certain people must hold office, then surely those people will win the elections. Why arrest the others who run?"