《史记·七十列传·春申君列传》
楚王把李园的妹妹召进宫来很是宠幸她，于是生了个儿子，立为太子，又把李园妹妹封为王后。
楚王召入幸之，遂生子男，立为太子，以李园女弟为王后。
King Chu called Li Yuan's sister into the palace and favored her very much. Then she gave birth to a son, and he was established as the Crown Prince. Also, Li Yuan's sister was made the queen.