Norscan King

The most powerful Norseman in every tribe is the King. Most Kings were once Jarls, but occasionally, one inherits the title from his father. Rules of succession vary a great deal. In the north, the tribal leader is always the victor of a bloody contest, with all claimants battling for control. In the south, Kings inherit their titles in a way similar to those used in the Empire. Most Kings bear the favour of their God, having a potent Mark of Chaos to show their right to rule. Celebrated Chaos Champions, they prove their worth and might in war time and again.

Source

 * Warhammer Fantasy RPG 2nd ED -- Tome of Corruption
 * pg. 141