墓志是研究家族房支的珍贵而翔实的资料。隋唐时期,郑氏洞林房十分显赫,但因无人作相,不见载于《宰相世系表》,因而无法窥见该房支发展的全貌。利用出土墓志,辅以正史与文集,我们考证出了洞林房较为清晰的人物世系,并得以了解到该房支的仕宦、婚姻特点与归葬状况。 The epitaphs are precious and informative materials for studying families and families. During the Sui and Tang dynasties, Zheng’s Cave was very prominent. However, because no one made any appearances, it did not appear in the Table of the Prime Minister’s Epoch, and thus could not glimpse the whole picture of the development of this branch. Unearthed unearthed epitaphs, supplemented by the history and anthologies, we examined the Cave of the more clear character of the lineage, and to understand the official branch of this branch, the characteristics of marriage and the situation of the burial.