The source is more complicated, among which the most influential one comes from the royal family of Zhou Dynasty and is enfeoffed by members of the royal family. King Jing of Zhou made his youngest son a vassal state in (now Picheng, Jiyuan City, Henan Province). Later, in order to show his identity, he fled from Yan (now Weihui City, Henan Province) and took Yang as his surname. In the Eastern Zhou Dynasty, there was a vassal state called Yang (in the southeast of Qingzhou, Shandong Province today), which was adjacent to Qi and was later annexed by Qi, so Yang Guoren took the country as his surname and called it Yang. For another example, it is said that some descendants also took Yang as their surname. During the Spring and Autumn Period, there was a retainer named yang hu in the Sun family of Lu. Because the feudal city was in Yangguan (now south of Tai 'an, Shandong Province), it took Yang as its surname, and later people also took Yang as their surname. There was a father in the state of Jin who was a teacher in Yang, and he was sealed in Yang (now Dongyang City, Taigu, Shanxi Province), and his descendants also took Yang as their surname. King Chu Mu is famous for his son. When his grandson was King Chu Ping, he was Yin and sealed in Yang (address unknown). His descendants are also surnamed Yang. In addition, the Manchu, Hui, Dong, Tujia, Buyi and other ethnic minorities also have the surname Yang. Yutian (now Hebei) and other counties have been formed in history. It is widely distributed in contemporary times, centering on Henan, Hunan, Guangxi, Sichuan, Jiangxi and other provinces. Historical celebrities: Confucius had a disciple Yang Huo in the Spring and Autumn Period, Vencent Yang, commander of Shanggu in the Han Dynasty, Yang Qiu, the satrap of Jiujiang in the Northern Dynasty, Yang Jiao, the son of the Tang Dynasty, and Yang Xiaoben, a doctor in the Song Dynasty.