Another set back to the Khmer Empire was the southward expansion of the Kingdom of Vietnam. As early as 10th century, Vietnam first began its territorial expansion over the Kingdom of Champa. In early 17th century, they captured the remaining part of the territory, and the Kingdom of Champa was erased from the world map. The Chams’ territory is now simply known as Central Vietnam. During the reign of Tran Anh Tong (1293-1314), Princess Huyen Tran of Vietnam was presented for marriage to the King of Champa as a trap to annex the Chams’ territory. After the arranged marriage, the annexation was completed as planned, in 1673. A similar scheme was also used against the Khmer Empire. The campaign started in 1623 and continued until they occupied the whole of Kampuchea Krom.
