Li Mian
Li Mian was born in 717, during the reign of Emperor Xuanzong. He was a member of Tang Dynasty's imperial Li clan, being a great-grandson of Li Yuanyi (李元懿) the Prince of Zheng, a son of Tang's founding emperor Emperor Gaozu. His father Li Zeyan (李擇言) was a son of Li Yuanyi's son Li Xuan (李璿) the Duke of Nanhai, but as Li Xuan's brother Li Lin (李琳) the Duke of Ande was sonless, Li Lin adopted Li Zeyan, who thus inherited the title of Duke of Ande. Li Zeyan successively served as a prefect of four prefectures, and while serving under the important official Zhang Jiazhen, who was otherwise arrogant and condescending toward his subordinates, was particularly respected by Zhang.