Chu (Chǔ) has five surnames: 1, which comes from Mi's surname and takes the country name as his surname. According to the records in Xing Yuan Genealogy and Custom Pass, Zhuan Xu's great-grandson and Zhuan Xu's descendant Liewen were named Jing Guo Hao, and later moved to the capital of Ying City (the old city is now the old Ying City in the north of Jiangling, Hubei Province), and later changed to Chu State, and later generations took Chu as their name. 2, from the surname Ji, with the ancestral name as the surname. According to the genealogy and surname genealogy, the illegitimate child was named after the doctor Zhu. 3, from the ancient sage Chu Lao, Chu surname at the beginning. 4. After Chu Long in the Spring and Autumn Period. According to the Records of Famous Men's Words and Actions, the book was written after Chu Long, the retainer of Zhao Meng (Zhao Xiangzi) in the Spring and Autumn Period. 5, from his family with his surname. Lisu people hurt Rao Shishi, and the Han surname is Chu; Tujia and other ethnic groups also have this surname today. Ancestor: Xiong Yi. The founder of Chu State in the Western Zhou Dynasty, Wen's great-grandson Gou, is a descendant. At the beginning of the Zhou Dynasty, Xiong Ying helped Wu Geng, the son of Zhou Wang, rebel against the Zhou Dynasty. After the failure, he was forced to go south and set Jingshan (now Nanzhang West, Hubei Province) as the base for further development. When I arrived at Xiong Yi, I remembered the merits and made him the capital of Danyang, with the title Jing and Jue Tong Zi Nan. After that, he moved to Ying, the capital, and changed Chu. Chu was the largest vassal state in the south during the Eastern Zhou Dynasty, and it was once very powerful. In the late Warring States period, Chu was destroyed in Qin, and later generations commemorated the old country. Some people take the country as their surname and call it Chu, and respect Xiong Yi, who founded Chu, as the ancestor of Chu. At present, Chu surnames are widely distributed all over the country, especially in Henan and other provinces. Chu surnames in one province account for more than half of the Han population in China. Chu is the 276th surname in China with a large population, accounting for 0.02% of the Han population in China. The name of the Chu people is: Chu Yan, a mathematician and astronomer in the Song Dynasty, good at arithmetic. He made a calendar called "Sacrifice to Heaven", and he also wrote an astronomical work "Calendar of Missing Chen Xing". General Chu Ding of Yuan Dynasty