《后汉书·列传·独行列传》
叔伯哥哥赵忠，为中常侍，赵苞以门族有宦官为奇耻大辱，不与赵忠来往。
从兄忠，为中常侍，苞深耻其门族有宦官名势，不与忠交通。
Zhao Zhong, his uncle's elder brother, was the Zhongchangshi. Zhao Bao thought it was a disgrace to have a eunuch in his family, so he did not keep in touch with Zhao Zhong.