The Enemy Within
In his youth, Sigmar was a prince of the Unberogen tribe. He saved the dwarf King Kurgan Ironbeard of Karaz-a-Karak from orc ambushers. Ironbeard rewarded Sigmar with Ghal Maraz – the legendary warhammer known as Skull Splitter. When Sigmar became chief of the Unberogens, he knew that mankind could not survive divided against the greenskins, so he united twelve of the tribes, some with rhetoric, others by force of arms. Sigmar’s ultimate triumph was alongside King Kurgan at Black Fire Pass, where howling orcs shattered against the iron of men and dwarfs. The tribes proclaimed Sigmar their Emperor, and Kurgan gave him a magnificent crown and ordered the forging of the famed runefang swords, which the Elector Counts still wield today. The Imperial calendar dates from Sigmar’s crowning.
In old age, Sigmar travelled east and vanished from history. Legends sprang that the gods had claimed him as their own, and veneration of the first Emperor became a powerful faith. Sigmar left Ghal Maraz as a sacred heirloom, and the twelve tribal leaders elected one of their number to wield it. To this day, a new Emperor is chosen by the Imperial Electors.