MA Yu, with the literary names of Xinghe ( Zi) and Zhanxuan ( Hao) respectively, was a number one imperial scholar in the second year of Xuande , Ming Dynasty.In the second year of Zhengtong , he was raised to Cidu Xueshi (a scholar in charge of accompanying the emperor or princes in study ) .In the third year of Zhengtong , he was raised to Cijiang Xueshi ( a scholar in charge of imperial historical records ) , after finishing his book Historical Records of Emperor Xuanzong.In the fifth year of Zhengtong, he took office in the Cabinet , under the recommendation of YANG Shi -qi.In the tenth year of Zhengtong , he was further raised to junior assistant minister of Royal Rites Ministry .He left behind a book entitled Selected Works of Zhanxuan.His contacts with social elites of that period of time , mostly with Southern Zhili scholars , and their political and social relationships can be outlined though his poems , for it provides valuable clues for us to know more about these scholars .