

The war also saw the widespread deployment of deathfog, a deadly biomagical weapon that could instantly kill any being, whether Human or undead, as well as deployment of Deathfog borne creatures. After taking power, the noblemen initiated a reign of terror across the entire Imperium, with historians referring to it as the Darkest age in the Imperial era. The War was caused by a coup by a group of tyrannic noblemen who were opposed to emperor Markus Christiansen's liberal reforms that reduced the power of the nobility and democratized many positions in the Imperium.

The Imperial Civil War was the very first large scale war in The Sanguine Imperium.
