In Kublai Khan's legend, Mungo and being lost in the sea are mother-child relationships. The third son of Genghis Khan, the first emperor of the Mongolian Empire, was buried in the sea. He was made a princess by Genghis Khan, assisted by Wokuotai Khan, and later became the second princess of the Mongolian Empire because of Wokuotai's death. She is praised for her virtuous, tolerant, kind and compassionate personality, and is called "the saint behind the empire" and "the virgin of Mongolia".

For more information, you can watch TV dramas or consult relevant historical documents.