The Strongest Sith Ever Just Wanted to be Left Alone

So I had a little too much fun reading about Star Wars lore in the History Abridged video about Darth Plagueis the Wise and uh... well it looks like we're going down the rabbit hole. So Vader’s Sith-Daddy is the Emperor, the Emperor’s Sith-Daddy is Plagueis. Plagueis spends all of his time studying the lost dark arts of the ancient Sith to get his mad powers, and who was it Plagueis was plagiarising? Guy named Darth Bane, leave your obligatory Batman jokes at the door.