Zheng-tong: Year 4, Month Intercalary 2, Day 11
25 Mar 1439
...and the attendant minister Ruan Ting-li and others who had been sent by Li Lin, the king of the country of Annam, all came to Court and offered tribute of horses, gold and silver utensils and local products. A banquet as well as variegated silks and other goods, as appropriate, were conferred upon them.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 24, page 997