《新唐书·列传·卷一》
杨国忠辅政专权，其子杨日出娶万春公主为妻，杨暄娶延和郡主；其弟杨鉴娶承荣郡主。
国忠之辅政，其息昢尚万春公主，暄尚延和郡主；弟鉴尚承荣郡主。
Yang Guozhong held the power of the government and his son, Yang Yichu, married the Princess Wanchūn as his wife, while Yang Xuan married the Princess Yanhe. His younger brother, Yang Jian, married the Princess Chengrong.