In the year -15 IC, King Ironbeard was captured by a party of marauding Greenskins and rescued by the young prince Sigmar, and gifted the warhammer Ghal Maraz to him in thanks. Subsequently, Kurgan made treaties of friendship and trade with the Unberogns which helped them to grow in strength and prosperity, uniting the tribes of man under their leadership. At the Battle of Black Fire Pass, Kurgan led the Dwarf forces alongside the united twelve tribes of men under Sigmar's command against a massive army of Greenskins.
- The Life of Sigmar (Background Book) pg. 6 - 18, 19 - 22, 23 - 34, 35 - 39, 40 - 48, 49 - 56, 57 - 82, 83 - 86, 87 - 98
- Heldenhammer (Novel) by Graham McNeill
- Empire (Novel) by Graham McNeill
- God-King (Novel) by Graham MceNill
- Let the Great Axe Fall (Short Story) by Graham McNeill
- Birth of a Legend (Short Story) by Gav Thorpe