Darth Plagueis, remembered as Darth Plagueis the Wise, was a male Muun Dark Lord of the Sith and heir to the lineage of Darth Bane. Trained by Darth Tenebrous, Plagueis mastered the art and science of midi-chlorian manipulation. Obsessed with eternal life, he experimented with ways to cheat death and create new life from the midi-chlorians. In his public guise as Magister Hego Damask of the InterGalactic Banking Clan, Darth Plagueis backed the rise and fall of certain star systems, businesses, and crime lords, earning him many enemies and putting the Galactic Republic into turmoil. He is the mastermind of his conflict during the first war and was responsible for let Sylvanas Windrunner to the Dark Side of the Force. He was later murdered by Darth Sidious, his apprentice, during his slumber.