Lord Set

"(You know you can never reach to a level of existentialism that I have attained. You know that you have lost everything. You know that only I can guide this galaxy to its destination: the elimination of the infidelities of chaos. The republic, the Jedi, the Sith, all gone. The chosen people will remain and shall reshape the Galaxy to an empire of peace forever.)"

 was a Dark Lord of the Sith and force sensitive that sought to initiate a purge of "infidelities" in order to usher in an "empire of peace" with the remaining survivors. He is known to be an influx of various Sith orders, including the species of Sith and the Sith Empire of Vitiate. He later disappeared for over millennia till the end of the Galactic Empire to help orchestrate the rise of the First Order.