House Ginaz
warrior house of the Swordmaster School
House Ginaz was a Great House of the Landsraad renowned across the Imperium for its Swordmaster School, an ally of House Atreides under Duke Leto that was destroyed in a War of Assassins by House Moritani of Grumman.
House Ginaz was a Great House of the Landsraad during the era of the Faufreluches, the rigid class system of the Imperium. It was an ally of House Atreides during the time of Duke Leto Atreides, and it was defeated in a War of Assassins waged against it by House Moritani of the planet Grumman. (Dune (appendix))
The Swordmaster School#
House Ginaz was renowned throughout the Imperium for its Swordmaster School. Frank Herbert gives the title Swordmaster of the Ginaz to Duncan Idaho, and Duncan's role shows that Swordmasters were more than mere soldiers: he commands Atreides troops, helps teach young Paul to fight, and goes ahead to Arrakis as the Duke's envoy to the Fremen. (Dune)
The expanded books fill in the school itself. Many Great Houses send a gifted soldier to be trained there, the course lasts eight years, and anyone who graduates earns the title. Duncan is sent to Ginaz by Duke Leto in Dune: House Harkonnen. (Expanded books: Dune: House Harkonnen)
During the time of Duke Leto, House Atreides maintained its own Swordmaster in the person of Duncan Idaho, who says his sword was first blooded on Grumman. His attachment to the Atreides was characteristic of the House Ginaz tradition, in which a trained Swordmaster carried the discipline of the school into the service of the House that employed him. (Dune)
Alliance, rivalry, and destruction#
House Ginaz stood as an ally of House Atreides during the rule of Duke Leto. Its enemy was House Moritani, the ruling House of the planet Grumman, with whom it came into a War of Assassins. In that conflict House Ginaz was defeated. (Dune (appendix))
According to the 1984 Dune Encyclopedia, the founder of the line was Alberto Ginaztera, who established the Ginaztera Company and was reckoned the forefather of House Ginaz. Said to have been born on Gioia in the Beta Tau Beta System, the son of a composer, he was trained as a serious musician and singer and was particularly adept with stringed instruments. After his death, his wife Maria-Elisa increased the family's fortunes considerably by smuggling during the travels of their entertainers' troupe and reinvesting the proceeds into what grew into an entertainment empire, from which the House later rose to noble standing. (The Dune Encyclopedia)
Frequently asked questions
- What was House Ginaz?
- House Ginaz was a Great House of the Landsraad during the era of the Faufreluches, the rigid class system of the Imperium. It was an ally of House Atreides under Duke Leto Atreides.
- What was the Swordmaster School of House Ginaz?
- House Ginaz was renowned throughout the Imperium for its Swordmaster School, where many Great Houses sent a gifted soldier to be trained. Anyone who graduated was awarded the title Swordmaster of the Ginaz. In the expanded book Dune: House Harkonnen, Duncan Idaho spends eight years training there.
- What did Swordmasters of the Ginaz do beyond fighting?
- Swordmasters were more than mere soldiers. They often served the Houses they were attached to as chief tacticians, military advisors, and tutors to noble families.
- Who was the Swordmaster of House Atreides?
- Duncan Idaho served as the Swordmaster of House Atreides during the time of Duke Leto. His attachment to the Atreides was characteristic of the House Ginaz tradition, in which a trained Swordmaster carried the discipline of the school into the service of the House that employed him.
- What happened to House Ginaz?
- House Ginaz came into a War of Assassins with House Moritani, the ruling House of the planet Grumman, and in that conflict House Ginaz was defeated.
Sources
- BookDune, Frank Herbert, Chilton Books, 1965
- BookDune (appendix), Frank Herbert, 1965; the appendices and Terminology of the Imperium printed with Dune
- BookDune: House Harkonnen, Brian Herbert and Kevin J. Anderson, 2000
- BookThe Dune Encyclopedia, Edited by Willis E. McNelly, Berkley Books, 1984
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

House Atreides
House Atreides was a respected House Major of the Galactic Padishah Empire, ruled by a Duke and seated for twenty-six generations on the ocean world of Caladan. Through Paul Muad'Dib and his son Leto II, the Atreides line rose to rule the Known Universe before passing into a bloodline scattered across the millennia.

The Great Houses of Dune: Every House Explained
Every noble House of the Dune Imperium, from the Imperial House Corrino to the Great Houses of the Landsraad and the smaller families around them. Each entry gives the House's homeworld, its rulers, what it was known for and how it ended, and says which Houses come only from the later expanded novels or the games.
House Moritani: the Feuding House of Grumman in Dune
House Moritani ruled Grumman and is known in Frank Herbert's Dune for one thing, its War of Assassins against House Ginaz. The Brian Herbert and Kevin J. Anderson books add Viscount Hundro Moritani, whose feud with House Ecaz ended with the House wiped out.

Duncan Idaho: reborn as ghola after ghola
Leto's Swordmaster died on Arrakis in the Desert War. The Tleilaxu brought him back again and again, serving the Atreides for five thousand years.

Ginaz
Ginaz was an ocean world of scattered archipelagos and the ancestral home of House Ginaz. Its fierce warrior culture, ruled by the Council of Veterans, produced the legendary Swordmasters of the Imperium.

Leto Atreides I: the Duke betrayed on Arrakis
Duke of House Atreides and father of Paul. Shaddam handed him the spice fief of Arrakis, and the Harkonnens killed him there in 10191.
Mentioned in6 entries
Duncan Idaho: reborn as ghola after ghola
Leto's Swordmaster died on Arrakis in the Desert War. The Tleilaxu brought him back again and again, serving the Atreides for five thousand years.
Ginaz
Ginaz was an ocean world of scattered archipelagos and the ancestral home of House Ginaz. Its fierce warrior culture, ruled by the Council of Veterans, produced the legendary Swordmasters of the Imperium.
Hiih Resser: the Moritani Swordmaster who refused
Hiih Resser was the only Grumman student to keep his place at the Ginaz school when House Moritani was disowned by the Swordmasters, and he went home expecting execution. He served his Viscount through a failed strike on Caladan and then quietly gutted the man's last atrocity by leaving the detonators off a field of buried atomics.
House Moritani: the Feuding House of Grumman in Dune
House Moritani ruled Grumman and is known in Frank Herbert's Dune for one thing, its War of Assassins against House Ginaz. The Brian Herbert and Kevin J. Anderson books add Viscount Hundro Moritani, whose feud with House Ecaz ended with the House wiped out.
Swordmasters of Ginaz
The Swordmasters of Ginaz were warriors who earned the title by attaining a high level of skill at the Ginaz School. Regarded as superior to Sardaukar, they served the Great Houses as commanders, teachers, and personal guards.
The Great Houses of Dune: Every House Explained
Every noble House of the Dune Imperium, from the Imperial House Corrino to the Great Houses of the Landsraad and the smaller families around them. Each entry gives the House's homeworld, its rulers, what it was known for and how it ended, and says which Houses come only from the later expanded novels or the games.
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