The Tomb Kings, known as the Priest Kings in their former lives are the undying rulers of Nehekhara, an ancient Human civilization that formed a great and powerful empire some two thousand five hundred years before the birth of Sigmar Heldenhammer and the founding of the Empire of Man. Out of all the unliving creatures that would claim dominion and royalty over the dead, only the Tomb Kings could truly claim such masterful and undisputed sovereignty, they who once ruled a mighty and far-flung Empire during a time when the rest of Mankind were little more than savage barbarians.
Long ago, during an ancient and forgotten age, the civilization of Nehekhara stood as the shining beacon of civilization and Human achievement; a golden age where its cities shone with a majestic splendor, its buildings crafted from magnificent marble and limestone, its armies conquering entire kindgoms from the face of the earth and their mighty rulers reigning as living Gods amongst Man. But this great realm was razed millennia ago through acts of great treachery and powerful sorcery. The living of the land had long ago perished in a single, mournful night, and in their absence, the dead stirred from their graves and claimed the land anew.