 Before the events of the "Prelude to Dune" prequel trilogy (1999–2001) by Brian Herbert and Kevin J. Anderson, Chaola Fenring (also known as Cirni) is lady-in-waiting to Habla, the fourth wife of Padishah Emperor Elrood Corrino IX, and serves as wet nurse to both her son Count Fenring and Crown Prince Shaddam.It is also hinted that Chaola may have secretly been a sister to Elrood.Chaola's son Hasimir proves to be a failure for the Bene Gesserit breeding program; as Paul Atreides himself notes in "Dune" (1965), "Fenring was one of the might-have-beens, an almost Kwisatz Haderach, crippled by a flaw in the genetic pattern — a eunuch, his talent concentrated into furtiveness and inner seclusion."