House Moritani/DE

House Moritani emerged during the Battle of Corrin, when House Corrino ascended to become the first Padishah Emperor. House Moritani had fully supported the Corrino plans. Sheuset I, acknowledging the Moritani contribution to his cause, granted his Moritani allies a Viscount title and the planetary fief of Grumman. Consequently, House Moritani has remained a loyal ally of the Corrino Empire.

Keshas Zhorzh was an assassin the House employed.

House Moritani had a long-standing feud with House Ginaz. Moritani spoke in the interests of Corrino during the debate over inclusion of Ginaz in the Landsraad, and Moritani that conducted a particularly vicious whispering campaign against Ginaz behind the curtains. Faustino Ginaz is said to have sworn eternal revenge against Yukio Moritani and his heirs over the insult to the House of Ginaz.

The oath eventually led to a War of Assassins (10175 AG-10181 AG). During the war, Moritani was supported by Shaddam IV, who was wary about Duke Leto I Atreides and his his House, an ally of Ginaz.

Other Versions
The Dune: Chronicles of the Imperium roleplaying game mentions Count Ferdinand Moritani, Lady Redolyn Moritani and their son and heir Tycho di Moritani as well as the House 's swordmaster-Mentat Dembreth Umbrico,Mentat-Advisor Malik Richmond and Vizier-advisor Pradisek.

The Prelude to Dune gives a differing account on the events which led to the war of assassins and eventual destructions of both houses. In this the Ginaz had originally been a neutral school of Swordmasters who almost by default became victims of the Moritani whose Viscount Hundro was originally only involved in a feud with House Ecaz. When House Moritani attacked the Ecaz heir on the neutral Ginaz training-world the Swordmasters expelled all Moritani students and officially accused and insulted Hundro Moritani who answered with an attack on the military not prepaired Ginaz world which killed more than a hundred Swordmasters. The alliances of the Moritani with House Harkonnen and of House Atreides with Ecaz also drew both houses into the war.