《明史·列传·卷一百九十六》
二十一年八月，严嵩拜为武英殿大学士，入文渊阁值班，仍掌管礼部事务。
二十一年八月拜武英殿大学士，入直文渊阁，仍掌礼部事。
In the eighth month of the twenty-first year, Yan Song was elevated to Grand Secretary of the Wuyin Palace, assuming office in the Wenxuan Pavilion and continuing to manage the affairs of the Ministry of Rites.