Venerated Souls of the Empire
Just as Sigmar began his existence as a mortal man who elevated his status to that of a God, so too are there other people that are held in extremely high esteem by the citizens of the Empire. Although no other person in "recent" memory has achieved the same status as Sigmar, those individuals that show unparalleled piety, belief, and force of will are treated as demi-Gods by many Old Worlders.
Although they go by many other titles, the most common moniker attached to these esteemed individuals is "Venerated Soul." Another popular title is "Pious" and the two can be used interchangeably. While Venerated Souls are obviously held in the highest regard within the cult they belong to, they are almost universally respected among all the people of the Old World, due to their vigilance, deep faith, and sacrifices in the name of their God.
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Venerated Souls form minor pantheons beneath the banner of their patron deity, representing some historic event or narrow focus. There are Venerated Souls for the protection of children, martyrdom in battle, hearth fires, the prosperity of scriveners, and thousands of other things, some of which that are so obscure as to be almost ludicrous. Needless to say, the vast majority of these Venerated Souls are known or recognised by others of their faith, although there is usually only a handful called on with great frequency.