According to The History of Jin Dynasty, Wanyan Liang is considered as regicide and mother murderer who was called as "brutal king". The History of Jin Dynasty said "If Wanyan Liang wants to become the emperor, he would kill the older emperor; and if he wants to conquer other land, he would kill his mother who had the contradiction with him." But his infamy mostly came from he slayed his emperor and his mother. Not only that, but the Jin Government had wiped out some materials and distorted history. So the author thinks this kind of opinion still have some room to discuss.