Gong / Gong
The source gives several accounts: the posthumous name “Gong” of Jin Crown Prince Shensheng becoming a surname; the ancient equivalence of “Gong” and “Gong 共,” with the late Shang state of Gong 共 producing a surname from the state name; a change from the Liang state surname Jing to Gong; and a separate Ming-period record of Dai official families in Qujing and Longchuan, Yunnan.
The source states that the clan sections of Zheng Tongzhi and Xu Tongzhi both record the surname Gong, and it quotes Zheng Qiao’s account that Jin Crown Prince Shensheng was posthumously named Gong Jun and that his descendants adopted the posthumous name as a surname.
The source lists Gong Bo of the Jin period, said to have written twelve scrolls of Hanshu Yinyi and forty scrolls of commentary on Hanshu; it also lists Gong Zhao of Ruzhou in the Ming period, described as a Tianshun-period presented scholar who served as a censor-in-chief. The source does not state that the two belonged to a common lineage.
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