《晋书·志·第十章》
蔡氏之子字元衅，为陈氏服嫡母之丧，以堂舅之礼奉事陈公。
蔡氏之子字元衅，为陈氏服嫡母之服，事陈公以从舅之礼。
Cai's son's name was Yuanxin, who mourned for Chen's legitimate mother as his son, and he served Chen with the etiquette of a second cousin.