Masago, a Sith Lord who was both human and female, was also a member of the royal family. She concealed her allegiance to the Sith for a period, but eventually exposed her true nature by assassinating her brother, the king, when the right opportunity arose. After successfully deposing the king, Masago seized control of the throne. Among the political actions she took were the expulsion of Princess Misa from the palace, and the establishment of security checkpoints to safeguard the palace.
Learning of the king's demise, Misa and Tsubaki, a Jedi Knight who had previously served the king, joined forces with the intention of defeating Masago. The Sith Lord engaged Tsubaki in combat at the palace, attempting to sway him to embrace the dark side of the Force. In the course of their duel, Tsubaki inadvertently injured Misa, and, in an effort to preserve her life, he succumbed to Masago's proposition, becoming her Sith apprentice and using the Force healing to mend Misa's wounds.