There were many green hats in Jin Yong's works, but the color of each person's hat was not necessarily the same. In " Tian Long Ba Bu," Duan Yu's father, Duan Zhengchun, was described as a handsome gentleman with both beauty and art, but he always liked to maintain intimate relationships with other women and was called " the cuckold." Duan Yu's mother, A'Zhu, had once miscarried Duan Zhengchun, so she was considered one of Duan Zhengchun's mistresses. Therefore, she was called "Cuckold A'Zhu". However, Duan Zhengchun eventually married his cousin, Bai Suzhen, so the word 'cuckold' was eventually excluded from Duan Zhengchun's life.