Darth Sidious, also known as Palpatine or the Emporer, was born on Naboo in 82 BBY and trained from his own Sith master, Darth Plagueis to be a Sith lord. He murdered his master while he was sleeping and later founded the Galactic Empire after he had fooled both the Jedi Order and the Galactic Reblublic about his true identity as the Sith master the Jedi Order was looking for.