Dark Cleric Salem is unknown being who owned the [Key to Salem's Chest] and Dark Cleric Salem's Chest which were guarded by Lieutenant Sanders.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
Salem may have been a part of the Scarlet Crusade considering Sanders guarded his chest. Otherwise, Salem could be a Forsaken whose chest was stolen by the Crusade.