Tassa was a Codru-Ji woman, specifically the daughter of a clan's chieftain. This female individual's clan abducted Rikkar-Du, who belonged to a competing clan; ultimately, they wed and parented a son named Jassar. In the year 137 ABY, Darth Kruhl, a Sith Lord affiliated with the One Sith, attempted to gain her husband's backing for the Sith Empire; however, he declined and subsequently suffered assassination. Tassa herself met her demise at the hands of Kassek-Ka, a rival clan's leader who was loyal to the Empire.