| Physical description
|Chronological and political information|
Murrtaggh assassinated the mysterious Dark Lord of the Sith known as the Dark Underlord with the assistance of a Mandalorian diversion on the Dark Underlord's forces, the Black Knights. While most of the Sith forces were battling the Mandalorians, Murrtaggh was able to penetrate the Dark Lord's fortress and engage the Dark Underlord in a duel. He killed the Dark Lord, but gave himself over to the dark side to do so.