Which emperors in Dali became monks?

How many of the twenty-two kings of Dali abdicated as monks? Various historical records have different opinions. In history, there have been several typical sayings, such as eight people's saying, nine people's saying and Luo people's saying. Of course, all books about Dali history admit and record that the king of Dali is mainly Duan, Duan, Duan Silian, Duan, Duan Zhengxing. There is no doubt about it. Later, some books added records of "Zen position" or "avoiding position", namely Duan Suzhen and Duan Zhengming. This is the version of the Eight Emperors' theory of becoming a monk.