Zheng-tong: Year 14, Month 5, Day 27
17 Jun 1449
The chieftain Dao Zai, who had been sent by Dao Gai-han, the native-official magistrate of Wei-yuan Subprefecture in Yun-nan, and... came to Court and offered tribute of horses, gold and silver utensils and other 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 3448