Darth Vectivus

"[He was] a hardheaded business man with a keenly balanced sense of profit and fairness, and when temptation whispered in his ear he could ignore it as easily as he could ignore the importunings of equally destructive softheartedness."

- Lumiya

Darth Vectivus was a Sith Lord from long before Darth Plagueis's time. He was a shrewd but fair man, and even as a darksider, his self discipline and preexisting business ethics allowed him to remain fair and balanced, without succumbing to the lure of power.

Biography
Vectivus was a tall, dark haired man with a short cut elegant beard. Despite looking somewhat overweight, his loose fitting black garments suggested this was largely due to muscle as well as fat. he had a silver lightsaber with inlaid black stones that were shaped like diamonds. Historically, little is known of the man who became Darth Vectivus before he became the administrator of a mine on an asteroid near Bimmiel.

Many millenia ago, the inherent dark side energies of the asteroid had been enhanced by a sub-species of dark-side weilding mynocks. As a Force-sensitive, Vectivus could feel the energy within the asteroid and began to study it, performing experiments, and acquiring new powers. After the dark side energies slowly began to drive his mining crews insane, and the grade of the ore began to decline, Vectivus quietly shut down the mine.

After ensuring that the mine would be quietly forgotten about, and after learning all there was to learn from the place, Vectivus departed and began to seek out the Sith. Years later, he returned to the asteroid, a full-fledged Sith Lord. He built a mansion there, at the heart of the dark side energy, and lived out the rest of his days surrounded by friends and family.

Legacy of Darth Vectivus
Centuries later, the aspiring Dark Lady of the Sith, Lumiya moved into the remains of the mine above Vectivus's mansion. She used it as a sanctuary, where she studied Vectivus and the history of the Sith and the Force.

In 40 ABY, Lumiya took Jacen Solo to Vectivus's former home to begin his journey to the dark side. What appeared to be a Force-echo of Vectivus, describing itself as "a sliver of a ghost", also interacted with Nelani Dinn. The only information the supposed ghost offered on Vectivus's history was to say that he died "centuries ago", and that Jedi Dinn would not know his birth name.