You Mao (1127–1194), styled Yanzhi, was a native of Wuxi, Changzhou in the Song Dynasty. He was extremely intelligent when he was young and entered the Imperial College. He ranked first among many scholars in terms of ci - poems and fu - prose. In the 18th year of the Shaoxing reign, he was promoted to Jinshi (successful candidates in the highest imperial examination). He successively held official positions such as the imperial historian and lecturer, and was later appointed as the Minister of Rites. He once took the name from Sun Chuo's "Sui Chu Fu" and adopted it as his self - title. Emperor Guangzong once bestowed a plaque with calligraphy. He died at the age of seventy and was posthumously given the title of "Wenjian". He wrote works such as "Sui Chu Xiao Gao" and was one of the four great masters in the Southern Song Dynasty. You Tong (1618–1704), styled Tongren and later styled Zhancheng, with the sobriquet of Hui... (Note: The given Chinese text for You Tong is incomplete, so the English translation of his introduction is also incomplete here, following the original text's situation.)

### Migration and Distribution (Lack of information) The You surname is not ranked among the top 100 surnames in the Chinese mainland but ranks 36th in Taiwan. It originated from the Ji surname. During the Spring and Autumn Period, Prince Yan, a son of Duke Mu of Zheng, had the courtesy name Ziyou. Ziyou's grandson, Gui, took the character "You" from his grandfather's courtesy name as the surname to commemorate him, thus establishing the You clan. You Gui's second son, You Ji, with the courtesy name Zidashu, succeeded the famous prime minister Zi Chan in governing the State of Zheng. As a result, the You clan became well - known and spread more widely. During the Spring and Autumn Period, there was also a You clan among the Huanzhuang clan of the State of Jin. According to some clan genealogies, some people changed their surname from Wang to You. In the Yongle reign of the Ming Dynasty, Wang Xianyi became an adopted son of the You family and his descendants took the You surname. The ancestral halls of the You clan are named Fengyi, Guangping, Lixue, and Dongxing. From Ziyou to You Daobao, with the personal name Pi and the courtesy name Wu Zhang, during the chaotic period of the Tang Dynasty, Daobao migrated south to Heping Village (now Changping Village) in Jianyang, Jianzhou in southern Fujian, where he established his family and business. His descendants multiplied and spread to areas such as Ganzhou, Yudu, Huichang, Ruijin, Xingguo, and Luling in Jiangxi. During the Southern Song Dynasty, due to wars and chaos, the 68th - generation ancestor of the You clan, with the personal name Wenpo and the courtesy name Ersanlang (born around 1131), migrated from Linxikeng in Luling, Jiangxi to Kuotankaba (now the old house in Shangyouwu, Huohou Village, Rentian Town) in Shengyunli, Shanghang County, Tingzhou in 1175 to start a new life. Since the late Tang Dynasty and the Five Dynasties, the You surname has thrived in the southern Fujian region of present - day China. It can be seen that the You clan in Fujian migrated from Henan to Jiangxi, then to Zhejiang, and gradually spread to the south. Many You clan members have migrated to other places. Overseas, they can be found in Singapore, Malaysia, as well as in Hong Kong and Taiwan regions. In the Chinese mainland, they are distributed in Chongqing, Ganzhou, Suichuan, Lichuan, Longnan, Dingnan, and Chongyi in Jiangxi, Heyuan in Guangdong, Suichang in Zhejiang, Yongding, Sanming, Longyan, Wuping, Zhangpu, Ninghua, and Mingxi in Fujian. In the local county, they are in villages such as Qikeng, Gongziqian, Guanzikeng, Shaziwa, and Shipaigang. Most of the You clan members in Taiwan migrated from Zhao'an, Fujian, and are now more concentrated in counties and cities such as Taipei County and City, Yilan County, Taoyuan County, and Zhanghua County (the rest is omitted).