《礼记·玉藻》
太子在国君面前自称己名，如果出使他国，其介在通报时称之为 寡君之嫡子 。公子在国君面前自称 臣孽某 。
世子自名，摈者曰寡君之适，公子曰臣孽。
When a crown prince introduces himself to his sovereign, he uses his given name; if he visits another country, the intermediary refers to him as "the legitimate son of His Lordship." When a prince introduces himself to his sovereign, he refers to himself as "I, a son born of a concubine."