From TheWarWiki

Tome of Knowledge Entry

"In a combat that shook the very earth, Sigmar slew the Black Orc Warboss Vagraz Headstomper, thus freeing the Dwarf King Kurgan Ironbeard from captivity and planting the seeds for friendship between the races of man and Dwarf that still unites them to this day."

"-Excerpt from the Life of Sigmar"

Walkthrough

Obtained During the quest Of Honor and Glory from Ehren Aldemar. Coordinates 24.768, 55.793.