I've got half a mind to kill you, luckily the other half agrees
—Darth Sses
Darth Sses was born in 180 ABY. Darth Sses was a male cyborg (cybornetic organism) Sith Lord. He was a fanatic of Darth Vader, copying him in nearly everything he used: for example, the same lightsaber hilt, same lightsaber form, and so on. He was one of the proficient Sith of the Third Sith Order. He had three apprentices.
He died in 666 ABY when he activated the self-destruct on the Magnetic Factory.