Pei Du
Pei Du was born in 765, during the reign of Emperor Daizong. His family was from Hedong (河東, in modern Yuncheng, Shanxi) and traced his ancestry back to a line of government officials dating back to the Han Dynasty, Jin Dynasty (266–420), Former Yan, Later Qin, and Northern Wei, although Pei Du's direct ancestors was not listed with governmental offices for several generations until his grandfather Pei Youlin (), who served as a county magistrate, and his father Pei Xu () served as a county secretary general.