Wang Jin
Wang Jin was born in 700, during the reign of Wu Zetian. His family was originally from Wang clan of Taiyuan, but by the time of Wang Jin was living at Hezhong (河中, in modern Yuncheng, Shanxi). His great-great-grandfather Wang Ruxian (), great-grandfather Wang Zhijie (), and father Wang Chulian () all served as military advisors to prefectural prefects, while his grandfather Wang Zhou () served as a low-level official at the ministry of worship. He had at least five brothers – older brother Wang Wei and younger brothers Wang Chan (), Wang Hong (), and Wang Dan ().