Kailea Vernius

C'tair Pilru: rebel of occupied Ix

C'tair Pilru was an Ixian resistance fighter who was instrumental in restoring House Vernius as the rulers of Ix. Twin brother of the Guild Navigator D'murr Pilru, he failed the Guild's final test, survived the Tleilaxu conquest of his homeworld in hiding, and waged an underground war of sabotage until the planet was retaken.

Cammar Pilru: Ix's ambassador in exile

Cammar Pilru was the Ixian ambassador to the Imperial Court on Kaitain during the Suboid Revolt and the Tleilaxu conquest of Ix. He lost his wife to the invasion and his planet to a conspiracy he could not see, yet he kept an embassy in exile alive for more than two decades and helped secure the heir who continued House Vernius.

Chiara: the Harkonnen spy in Castle Caladan

Chiara Rash-Olin was an elderly lady in waiting from the Imperial Court of Kaitain who served Kailea Vernius on Caladan while secretly reporting to Baron Vladimir Harkonnen. Her whispered manipulations drove Kailea to bomb Duke Leto Atreides' skyclipper, a plot that killed young Victor Atreides, and when her treachery was exposed Kailea stabbed her through the heart.

D'murr Pilru: the Ixian Guild Navigator

D'murr Pilru was a skilled Spacing Guild Navigator of Ixian heritage, twin brother of the resistance fighter C'tair Pilru. He gave up family and human concerns for the heightliner's tank, and was instrumental in restoring House Vernius to the rule of Ix.

Dominic Vernius

Dominic Vernius was the penultimate true Earl of House Vernius and ruler of Ix. A decorated military ally of the Emperor turned bitter renegade after marrying the imperial concubine Shando Balut, he lost his House to a Tleilaxu invasion and died detonating a stone burner against Sardaukar on Arrakis.

Dune: House Atreides Explained: Plot Summary of the Prequel Novel

The plot of Brian Herbert and Kevin J. Anderson's 1999 prequel in order, from the fall of Ix to the young Duke Leto's trial before the Landsraad, with what the ending sets up for the rest of the Prelude to Dune books and for Frank Herbert's Dune.

Harishka

Harishka was Mother Superior of the Bene Gesserit through the Turbulent Era, guiding the Sisterhood across the last years of Elrood IX and the reigns of Shaddam IV and Paul Atreides. She watched over the final steps of the Kwisatz Haderach breeding program.

Helena Atreides

Lady Helena Atreides, born Helena Richese, was the wife of Duke Paulus Atreides and the mother of Leto Atreides I. Estranged from her husband and loyal to House Richese, she secretly arranged the assassination of Paulus and was exiled to a religious order on Caladan, where she died decades later.

House Vernius: the Ruling House of Ix in Dune

House Vernius ruled the machine world of Ix until an Emperor's grudge and a Tleilaxu takeover drove it into exile. It comes from the Brian Herbert and Kevin J. Anderson prequels, not Frank Herbert's novels, and its story runs through Earl Dominic, Lady Shando and their children Rhombur and Kailea.

Rhombur Vernius

Rhombur Vernius was the last true Earl of Ix, a lifelong friend of Duke Leto Atreides who survived an assassination attempt through cybernetic reconstruction, retook his occupied homeworld, and died shielding a planetary governor on Balut.

Sanya Ecaz

Sanya Ecaz was the eldest daughter and heiress of Archduke Armand Ecaz, once offered in marriage to Duke Leto Atreides I. She was kidnapped and publicly executed by House Moritani.

Shando Vernius

Lady Shando Balut-Vernius was a former concubine of Padishah Emperor Elrood Corrino IX who left the Imperial Court to marry Earl Dominic Vernius of Ix. Mother of Tyros Reffa, Rhombur, and Kailea, she was hunted down and executed by Sardaukar when House Vernius fell.