In 366, a mercenary army raised by the Malêth-Zandân drove out the usurper Sagayân Kazanîr. As a Terrant Emperor, Sagayân Kazanîr lacked the backing of the Minâth-Nôrî, so his defeat was almost guaranteed. His rule was not recognised by those holding power in society, because by the laws set down by the Minâth-Nôrî only a family of the Minâth-Nôrî could rule the people. The Malêth-Zandân drove out the Kazanîrs and put one of their own on the throne of the First Khazarkar Empire.
Hîlû Malêth-Zandân ruled the empire as a emperor, proving to be despised as much as Sagayân Kazanîr. The vast wealth of the Malêth-Zandân, coming from their near complete control of Sapthôr-Sahil resources kept them uncontested in the throne for eleven years. During this time, Malêth-Zandân made several attempts to marry their son into a house of the Minâth-Nôrî and thus legitimize their claim to the throne. Hîlû Malêth-Zandân married into another powerful non-Minâth-Nôrî house which was highly religious and liked by most of the noble families of the Minâth-Nôrî. In 377, Hîlû Malêth-Zandân agreed to abdicate and in return his family was recognized as a family of the Minâth-Nôrî. The family he married into, the Khirrêths, also became part of the Minâth-Nôrî. As part of the deal, the Khirrêths became the ruling family. The Khirrêths kept the bond, which was more like an alliance, with the Malêth-Zandân by having King Nithil Khirrêth take the hand of Azôn Malêth-Zandân.