Valya is being primed as the successor to the Bene Gesserit's first-ever Mother Superior, Raquella Berto-Anirul (Cathy Tyson), in place of Raquella's own granddaughter, Reverend Mother Dorotea ...

When Jessica gave birth to Paul, Reverend Mother Gaius Helen ... She was the founder and first Mother Superior of the Bene ...