Who are the four emperors in Taoism?

The Four Emperors, namely the Four Emperors, also called the Four Assistants, are the collective names of the four heavenly emperors in Taoism, whose status is second only to that of Sanqing. The first one is the Jade Emperor, whose full name is Heaven and Golden Que. The supreme nature is the miracle of the Jade Emperor, who is in charge of heaven. The second is the great emperor of northern central Wei Zi. He is in charge of latitude and longitude, the sun, the moon and the stars, and the stars and the four seasons. The third is the Shanggong emperor Gou Chen, who is in charge of the North and South, heaven and earth, and dominates the military revolution in the world. The fourth is the earth emperor, commonly known as the day after tomorrow, in charge of yin and yang fertility, the beauty of all things, the beauty of the earth. After the Song Dynasty, due to the strengthening of the position and role of the Jade Emperor in the Taoist deity system, Taoist books