Darth Nightmaricus was the first recorded Sith Lord, and was the founder of the Sith civilization on Korriban. He is one of only two known members of his species, the other being Jedi Master Salvius, his brother, who was the founder of the Jedi Order and the leader of the Ashla. Both were immortal, and had eight arms, but Nightmaricus had two cybernetic arms which he created from the Dark Side of the Force.