The Pure Sith Empire was a rich and powerful empire which had one motivation: Keep the Sith blood pure of any other blood. They were established by the Ten Founders, each of which was alive 22,000 years afterwards. Each one became extremely powerful but only one had absolute command: The Emperor, Irasa Suprava, that is, until the Great Hyperspace War. There, the Pure Sith became more of an open society, as the Dark Senate were murdered by Irasa himself, leaving him and the rest of the Ten Founders to take their places and kill his main enemy during the war: Marka Ragnos.