In Taoism, which immortal reincarnated the ancient emperor of China?

Wei Zixing is the emperor star, which should be the emperor star of the north pole of Zhongtian Wei Zi. The theory of "three religions and one family" should be that during the Yuan Dynasty, Quanzhen religion sometimes led the way. Later, the Taoist system evolved into the present orthodox Sect. Treating the emperor as a god should be the practice of Taoism, because Taoism says that there will be a god after tomorrow, while Buddhism, hehe, I remember those bald donkeys, Song Taizong, went to the Buddha and asked if they wanted to kneel down. The monk said that the Buddha doesn't worship the Buddha in the past now. Buddhism, a foreign religion, has no position at all. Wu Zetian also compiled a Buddhist sutra named "The Birth of the First Buddha in Tianhou".