The Drolvarg were actually once Iksar, residents of the city of Drolakis. Venril Sathir cursed them to create a race of Wolflizards and the Drolvarg were the result. Drolvargism is often referred to as The Curse of Drolakis. The first ruler of the Drolvarg was Thuuga, the Serpent Chief
Update: NPC dialogue from Indigo in EQ2 (For a Few Coins More quest)