Ancient Widow

Believed to be the spirit of Kislev itself, the Ancient Widow is believed to have whispered to a Gospodar shaman-priestess, long ago, promising her great power if she swore to lead her people West, towards a distant, frozen realm where the spirit was trapped by the will of the Dark Gods. The shaman, desperate to aid her people, readily agreed and was granted the ancient and mystical power of Winter itself. With the Ancient Widow's guidance, the shaman quickly mastered her new and god-like powers and used them to gather what she needed to fulfill her promise. With her will-power and powerful magic, she bound the disparate Gospodar Clans into a single unified people and placed herself above them as their first Khan-Queen.

Source

 * 1: Warhammer Fantasy RPG 2nd ED -- Realm of the Ice Queen


 * 1a: pg. 16 - 21