In 2313, Dongren was a prosecutor for the Vackrinos District and represented the region's government in its case against Mul. A week after Mul was transferred to the Dylhuc Detention Center, opening arguments by Dongren started the trial. The death of Mul abruptly ended the trial.
In 2366, this prosecutor was mentioned in the court records of Penthor-Mul, which were accessible to the crew of the USS Enterprise-D via the Acamarian planetary database. (TNG: "The Vengeance Factor", okudagram)