Zheng-tong: Year 14, Month 10, Day 24
9 Nov 1449
The chieftain Meng Sai and others who had been sent by Qing-ma-la, a family member of the deceased native-official prefect of Meng-gen Prefecture in Yun-nan, came to Court and offered tribute of horses, silver utensils and local products. A banquet as well as biao-li of variegated silks and other goods, as appropriate, were conferred upon them.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 30, page 3650