TIME's take on a Dune family tree illustrates the relationships between three of the most important Great Houses at the end of Dune: Part Two.

Dune: Prophecy showrunner Alison Schapker explains how the upcoming series explores the Harkonnen family's past. Taking place ten thousand years before the story of Paul Atreides, the HBO series ...

We've also left Princess Irulan's (Florence Pugh) four younger sisters out of the graphic, as they don't play a role in the Dune movies. See TIME's Dune family tree below. Lon Tweeten for TIME.

In the third Dune novel, Children of Dune, Herbert notes that Jessica's mother was a Bene Gesserit woman named Tanidia Nerus. However, in the Prelude to Dune prequel trilogy written by Herbert's son ...

TIME's take on a Dune family tree illustrates the relationships between three of the most important Great Houses at the end of Dune: Part Two.

See TIME's Dune family tree below. Lon Tweeten for TIME. Warner Bros. (9); Getty Images (6); Warner Bros./Everett Collection Read more about Dune: Denis Villeneuve explains making Dune: Part Two How a ...