A youthful Hutt crime boss, Darga Jiramma Mionne established a modest criminal enterprise situated on Cato Neimoidia. Despite not achieving the same level of success or power as other members of his lineage, he was convinced that his interactions with the Galactic Empire would rapidly accelerate his ascent to a position of authority. Darga was of the opinion that the Empire's expansion would lead to a corresponding increase in the influence of its associates.
At one point, he held the Jedi, Denia as a prisoner. Subsequently, he collaborated with the Inquisitor named Valin Draco. Darga possessed a significant stake in the Tibanna gas sector, leveraging it to acquire slaves from the Galactic Empire.
Following a raid on his palace by covert Alderaanian Resistance operatives, who eliminated his Force-sensitive majordomo, Igren Demos, Darga escaped to the Bespin system. There, he concealed his opulent yacht, known as the Glorious Chariot, and went into seclusion. Shortly after a sabacc competition, the insurgents who had previously seized his palace discovered his whereabouts. He was ultimately defeated on Cloud City by the rebel faction, who then seized his yacht along with six Z-95 Headhunters during the Battle of Bespin, which occurred a few months following the conclusion of the Clone Wars.