Darth Vader was a male Human Dark Lord of the Sith. Considered as the greatest Dark Lord of the Sith of all time, Vader originally existed as the dark side within Anakin Skywalker. Darth Sidious stole a midi-chlorian sample from Anakin. Sidious extracted the dark side from Anakin's midi-chlorians, and Vader was born. Vader was then charged in leading the Confederacy of Independent Systems. After a duel with Anakin in Bespin, Vader killed Sidious and became the new leader of the CIS. Later, Vader would travel across the galaxy to become a powerful master.