Bene Gesserit
Murbella is a young Honored Matre captured by the Bene Gesserit in "Heretics of Dune" (1984) and soon indoctrinated into the Sisterhood. In "" (1985), she kills the Honored Matre leader Logno as Bene Gesserit Mother Superior Darwi Odrade is killed, and manages to secure the leadership of both groups.