周紹良、趙超主編的《唐代墓誌彙編》中載有一方墓誌,編號爲貞觀一八一,原石與拓片均没有留存,墓主爲曹因,撰者爲墓主之妻周氏,墓誌全文如下:君姓曹,名因,字鄙夫,世爲鄱陽人。祖、父皆仕于唐高祖之朝,惟公三舉不第,居家以禮義自守。及卒于長安之道,朝庭公卿,鄉鄰耆舊,無不太息。惟予獨不然,謂其母曰:“家有南畝,足以養其卿;室有遺文,足以訓 Zhou Shaoliang, Zhao Chao, edited by the ”Collection of Tang Dynasty Epitaph“ contains an epitaph, number for the Zhenguan 18, the original stone and rubbings are not retained, the owner of Cao Yin, the author is the tomb of the Lord Zhou’s wife, epitaphs full text As follows: Jun name surnamed Cao, name because of the word mean husband, the world Poyang. Ancestor, father and father in the Tang emperor’s court, but the public did not vote for the first three, home to courtesy. And died in the road to Changan, court Tingqing, neighbors, the elderly, all interest. However, to be the only or not, that the mother said: ”family has South acres, enough to raise their Qing; room there are texts, adequate training