Assertion: dynasty's king | /r/CapableOf | offer vietnam two cham prefectures
Facets:
value: in 1306
type: TEMPORAL
Source sentences:
text: In 1306, the king of Champa, Chế Mân, offered Vietnam two Cham prefectures, Ô and Lý, in exchange for a marriage with the Vietnamese princess Huyền Trân.