王夫之
Tang was born in 1946 in Hengyang, Hunan, which was also the hometown of Wang Fuzhi. His father Tang Zhenchu (;1914–1999) was a member of the Central Committee of the Kuomintang and official in the National Government. His mother named Wang Dehui (). His elder brother Tang Yiming (; born 1942) is a scholar on Wei and Jin dynasties literature who graduated from Wuhan University and Columbia University. His elder sister Tang Shuming () died of dysentery during the Land Reform Movement in the 1950s. In 1949, before moving to Taiwan, Tang's parents entrusted their children to Tang Zhenchu's elder brother Tang Xuanzu (). In the Land Reform Movement, Tang Xuanzu was brought to be persecuted because he was a landlord. Shortly after, Tang Haoming was adopted by Deng Xianhong (), a hairdresser of Hengyang No. 2 Middle School, and renamed Deng Yunsheng ().