Dragon Age - The Wandering Blades
Nevarrans have a unique relationship with magic and death. They believe that when a dead soul crosses the Fade it displaces a Fade spirit. In order to provide safe hosts for such spirits they mummify their corpses and place them in elaborate crypts in the Grand Necropolis.
This task is entrusted to a secretive order of mages known as Mortalitasi, founded by a Tevinter mage named Vitus Fabria, who first preached the idea. Its gray-robed members enjoy wealth and political power as they often serve as advisers to Nevarran nobility, including the kings
The Grand Necropolis is located on the west bank of the River Cumber, with the necropolis itself built into the side of a mountain to facilitate the huge and grandiose family tombs required for Nevarran nobility.