This lore can be found by the Smuggler on Alderaan.


"The apprentice of the legendary Darth Malak, the Sith Lord responsible for the destruction of Taris, Darth Bandon was a promising young Padawan before he joined the Sith Order. He was slain by the Jedi Knight Revan during the Jedi Civil War, but his remains were confiscated by a group of particularly fanatical Sith acolytes who (for reasons best left unexplored) used Sith alchemy to preserve Bandon’s head. After Revan cut down Darth Malak and ended the war, the leaderless and disillusioned Sith turned to Bandon’s head for guidance, claiming they could use it to communicate with the deceased Sith Lord. The cult eventually caught the attention of the Jedi during a misguided attempt to find Bandon a fresh body; the Jedi dismantled the cult, but found no trace of the fabled head."
―In-game Codex (Codex/Lore)[src]
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