Legend of the Abyss
Hallr is the Family name of the Dwarven royalty since the Tearing. At that time the past noble family was killed when the Terra was being split down to the lower depths. The priest class of Hallr (meaning literally Stone in the Dwarven tongue) took control and began worship of Ásvaldr. Relegating their previous worship of ancestors to demigods.
The current king HallbJörn has drawn some criticism for allowing some Elves to become citizens as well as opening up trade for the elves of the surface.