Zheng-de: Year 8, Month 7, Day 17
17 Aug 1513
The chieftain Ban Guan-han and others who had been sent by Zhao Lan-na, the pacification superintendent of the Ba-bai/Da-dian Military and Civilian Pacification Superintendency in Yun-nan offered tribute of elephants, horses and a gold and silver elephant saddle. A banquet as well as rewards of brocaded silks, silk gauzes and other goods were conferred upon them.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 66, page 2112/13