The Triumvirs were the joint Protectors of Plort during the period immediately after Jay and Acacia's departure. They were:

Each of the Triumvirs had her own castle, and managed her own third of Konti-Nyuum: Bast held the west from the Temple of Spelin, Cam ruled the centre from Ofum, and Thalia commanded the east from Fanvik.

Eventually, each Triumvir left the Protectorate, with Bast being the last to do so. When she, too, departed, she instituted the Baronial System to provide leadership in her absence.