Taraza
Alma Mavis Taraza is the Mother Superior in Heretics of Dune (1984) who brings Bashar Miles Teg reluctantly out of retirement to guard the latest Duncan Idaho ghola. Taraza blackmails Tleilaxu Master Waff to find out all he knows about the new threat to the Old Empire known as the Honored Matres, as well as the fact that the Bene Tleilax have included their own agenda within the ghola. She also manages to divine that Waff is a secret Zensufi, which finally gives the Sisterhood a way to manipulate the Tleilaxu. Assigned to take command of the outpost on Rakis by Taraza, Odrade makes an alliance with Waff using this very knowledge of his religious beliefs. This alliance plays into Taraza's master plan: to destroy Rakis and free humanity from Leto II's own plan. An alliance with the Tleilaxu, the only remaining source of melange, would be essential after such a scenario. Taraza then considers a secondary plan of seeding other planets with sandworms with the help of the "sandrider" — a girl named Sheeana who has the power to control the worms. But when the Honored Matres finally attack Rakis, Taraza is killed with the first attack, cut down by lasguns. Luckily, Odrade has time to share Other Memory with Taraza before escaping with Sheeana into the desert on a worm.
Read more about this topic: List Of Dune Bene Gesserit