What is the relationship between Hua Guang Da Shizi and Zhao Shizi?

Huaguang Cross is not directly related to Zhao Shizi.

Huaguang's eldest son is the son of Emperor Huaguang. In Taoism, Marshal Ma is called the emperor, which is what we often call Marshal Ma. He has three eyes on his forehead. Folk say that Lord Ma has three eyes, and that's what he said.

Zhao Shizi, a juren in Yuan Dynasty, was one of the five great poets in Fuzhou.

These five big princes include Huaguang Grand Cross, Zhang Shizi, Zhao Shizi, Prince Jinlong and Wen Zhuangyuan. According to legend, Zhao Shizi became attached to Huaguang Grand Cross, Zhang Shizi, Prince Jinlong and Wen Zhuangyuan in Yuan Taizong. They met on the way back to their hometown and became friends in Jin Lan because of their similar interests.