Darth Malgus was a Lord of the Sith active during the Great Galactic War. He led the Sith's attack on the Republic's capital, Coruscant in 3.653 BBY. Malgus later rebelled against the Sith Emperor and founded his own empire. But Malgus was defeated during the Battle of Ilum and his empire was dissolved. The Sith Lord fled and his fate is currently unknown.