Who are the four emperors in ancient mythology?

Oriental heaven and earth: Tai Hao, assistant minister: Ju Mang, the god of wood, with the god of spring in his hand;

Western Heaven Emperor: Shao Hao, Assistant Minister: Ru Shou, the golden god, holding a ruler, is the autumn god;

Nantiandi: Yan Di, assistant minister: Vulcan Zhu Rong, with scales in his hand, is the summer god;

Zhuan Xu, the Northern Heaven Emperor, was assisted by the water god Xuanming, holding a scale in his hand, and was the winter god.

In addition, Fuxi and Dijun (another Di Ku) are also called heaven and earth.