Player Perspective & Knowledge:
Little is known of the Bull of the North. He appeared in the North before the Scarlet Empress disappeared. Multiple Wyld Hunts were sent after him and each was defeated in turn. This wily and obviously capable Solar has built a following around himself, an army to be reckoned with, and has been recruiting other Solars to his side. His most recent accomplishment is trouncing a sizable army sent from the Realm to bring an end to this growing problem.
Given his repeated success in defeating Wyld Hunts, Solars are beginning to join him in his efforts in uniting Creation under a single banner to bring down the Realm!