The term Triumvirate was adopted by spacers to refer collectively to the three primary Tunroth homeworlds: specifically, Jiroch-Reslia, Jiroch-Saloch, and Jiroch-Kalok. Around 9000 BBY, after joining the Galactic Republic, the Tunroth originating from Jiroch-Reslia went on to establish settlements on the other two planets.
This designation served as a tribute to the Assemblage of Three, who played a crucial role in advocating for and facilitating their planetary expansion.