Year
Event
1289
Lopburi, known to the Chinese as Lo-hu send tribute mission to China. This missions were sent aside from economic aims, with the intention of seeking
political support from China. On one of these missions Lopburi was reported to have petitioned the Chinese emperor to order Sukhothai to stop attacking
its territory.

[Ref: The Rise of Ayudhya - Charnvit Kasetsiri - (1976) - Page 80]
1291
Lopburi send tribute mission to China.

[Ref: The Rise of Ayudhya - Charnvit Kasetsiri - (1976) - Page 80]
1292
Sukhothai, known to the Chinese as Hsien, send tribute mission to China

[Ref: The Rise of Ayudhya - Charnvit Kasetsiri - (1976) - Page 80]
1296
Lopburi send tribute mission to China.

[Ref: The Rise of Ayudhya - Charnvit Kasetsiri - (1976) - Page 80]
1298
Death of Ramkamhaeng. Sukhothai went into rapid decline and lost all political influence in the area of the Menam Basin immediately south of its borders,
as many of its dependencies broke away and became independent. [Griswold and na Nagara placed the death of Ramkhamhaeng in 1298 from the
evidence that a mission came to China from Sukhothai to report the death of a king and the beginning of a new reign. See Griswold and na Nagara,
‘Epigraphic and Historical Studies, No. 10, pp. 21-2. ]

[Ref: The Rise of Ayudhya - Charnvit Kasetsiri - (1976) - Page 80]
1299
1299 - Lopburi send tribute mission to China.

[Ref: The Rise of Ayudhya - Charnvit Kasetsiri - (1976) - Page 80]
   
1200 - 1299