Trisjon was a Moorjhoni man from the world of Moorjhone, situated in the Legends continuity, who existed in 20 BBY. When Maul and Savage Opress landed on Moorjhone, his granddaughter, Jatenne, summoned him, believing they were the "Demon in the Light" foretold in his Day of Three Suns prophecy. Following an injury Maul sustained in combat with the Jedi trio of Dray, Judd, and Salmara, he sought refuge in the desert and was discovered by a Moorjhoni group. These Moorjhoni transported Maul to Trisjon's dwelling, where Trisjon elaborated on the Day of Three Suns prophecy and Maul's designated part as the "Demon in the Light." Trisjon requested a private audience with Maul to discuss his leadership of the Moorjhone people in the attack targeting Ja'Boag's mining operation; however, he detected the dark side within Maul, who then manipulated the Force to exacerbate Trisjon's heart condition, leading to his death.