Terpenzi was a ha-naga and the first ruler of Najara, taking this position in −361 DR.[4]

In 89 DR, Terpenzi foresaw its own death and ordered its servants to search for Netherese artifacts. In the meantime, it searched for a mate. In the next year, it was indeed killed in battle with Verraketh the Shadowking.[3]

After being killed by the Shadowking, it returned more powerful than before in undeath,[2] when one of its offspring, Jacinica, bound it to the Marlspire of Najara.[5] Terpenzi continued to serve the kings who ruled after it, fighting the relic but still caring about Najara. It resided in the Snake Pit of Ss'khanaja among the treasures of the kingdom.[1]