The homeland and castle of Tandareis, hero of Der Pleier’s Tandareis and Flordibel.
Ruled by Tandareis’s parents, King Dulcemar and Queen Anticoni (Antikonie), it was besieged by Arthur to avenge an offense committed by Tandareis. Dulcemar and Gawain managed to negotiate a peace.
The kingdom is first mentioned by Wolfram von Eschenbach in the non-Arthurian Willehalm.
Source
Tandareis and Flordibel | Der Pleier, 1240-1270