Where is the origin of duang in Tangyin, Duchang, Jiujiang, Jiangxi and Zhou Xi?

What a professional question. Duang is the 87th most popular name in Chinese mainland, but in Taiwan Province Province, duang is not among the top 100 most popular names. The distant ancestors began in the Spring and Autumn Period and the Warring States Period, and there are two main sources: First, in the early Spring and Autumn Period, the younger brother of Zheng Zhuguo was called Duan, which was called Duan Shu in history. Duan was sealed in the place of "Beijing". Later, he and his mother conspired to overthrow Zheng Zhuanggong and committed suicide in the city of * * *. His descendants stayed in the city of * * *, taking "Duan" as their surname. Therefore, this duang originated from the surname of the royal Zheng and Ji. 2. At the end of the Spring and Autumn Period, the famous thinker Lao Zi (Kun Li) had a son named Zong, who served as the general of Wei. Since then, his descendants have taken Duan Gan as their surname. After Wei moved to Guan, the word "Gan" was removed and changed to Duan. Therefore, this duang originated from Duan Gan's surname. During the Han and Wei Dynasties, Duan Pi, the tribal leader of Xianbei nationality, was so busy that he surrendered to the court and was entrusted with the important task of hereditary "Duke of Western Liaoning". History calls this duang "Duan's family in western Liaoning". In the Western Jin Dynasty, this duang moved into the Central Plains and gradually merged with the Han nationality. In addition, during the Tang and Song Dynasties, Duan Shiping, a Bai-born man, established the Dali Dynasty in Dali Bai Autonomous Prefecture, Yunnan Province, and his descendants ruled Dali for 3 17 years until it was destroyed by Genghis Khan. Therefore, duang has become one of the most popular names of the Bai people. In the process of development, duang gradually formed four counties: Jingzhao, Tianshui, Wuwei and Liaoxi.