Look at what dynasty it is. For example, in the Ming Dynasty, each generation had corresponding characters and five elements attributes. For example, the generation of Emperor Xiaozong of the Ming Dynasty was born with the character "you" and the attribute of wood, so they were all Zhu Youtang, Zhu Youji, Zhu Youqi, etc.; the generation of his son Ming Wuzong was born with the character "bei" of the character "hou", with the attribute of fire, so they were named Zhu Houzhao, Zhu Houcong. , Zhu Houwei et al.