Darth Plagueis, also known as Darth Plagueis the Wise, born Simeon Gome, was a Jedi Master in the lineage of Darth Bane. He devoted his life to midi-chlorian manipulation, and taught everything he knew to Ethan Richeter, his first apprentice. His journey to become stronger in the force was only possible through the Dark Side of the Force. He became a sith and took upon a new apprentice, Darth Sidious, who he also taught everything too.