Doulao Yuan Jun or Zhenwu Emperor, which position is higher?

Yuan Jun has a son named Wei Zi Da Di, because Wei Zi Da Di is also called Zhongtian Wei Zi Bei Da Di, and Zhenwu Da Di is also called Xuanwu, which is one of the Four Saints of the Arctic and a subordinate of the Northern Emperor, so the relationship between Dawn Yuan Jun and Zhenwu Da Di is that Lafayette is in charge. Tian Pengyuan Shuai is one of Dum Yuan Jun's drivers and almost Zhenwu's colleague.