Where is the birthplace of the white family's "Yan" surname?

Masako: It is said that there is no face in the text. Today's surname spectrum is divided into two surnames, Shanxi and Shaanxi have more surnames. Continued Tongzhi imperial clan slightly cloud: the Ming Dynasty was serious, and it was Jiajing Juren; There are three employees of Yan, who used to be the magistrate of Hebei County. In addition, Yan is ranked 50th in China today. Yan's surname comes from Ji's surname and is a descendant of the Yellow Emperor. But Yan's family has three different origins, namely Ji's surname. First, it is said that Taibo Zengyi was sealed in Yan Township, and later generations took Yan as their surname, hence the name Yan. Second, according to legend, when the youngest son was born, he had a word Yan on his hand, so he was sealed in Yancheng, and his descendants were also surnamed Yan. The third statement is the most reliable. It is said that the son established the state of Jin. When Jin Chenggong arrived, Jin Chenggong appointed his son Yi in Yan. After the demise of the Jin Dynasty, some of his descendants took Yan as their surname, so they also took Yan as their surname. Yan surname first developed in Shanxi, Hubei and other places. During the Eastern Han Dynasty, Yan began to enter Sichuan, Shaanxi and Gansu. From the Ming Dynasty to the Qing Dynasty, Yan began to gradually expand to the south and developed to Jiangsu, Hunan and other places. After the Qing Dynasty, it began to enter Fujian, Guangdong and Taiwan Province provinces.