Saudir II

Saudir II Negara II was the son of Henoor II.

After Alman I was assassinated, he ascended the throne and restored Elias Atreides' estates and titles.

Behind the scenes
Saudir II was perhaps the "exiled emperor" supported by Elias Atreides who possibly was a rightful heir exiled by Alman I himself. The text of the Dune Encyclopedia is not clear in Alman's role, if he was an usurper or not.