To win his release, the captive king Chế Củ gave Đại Việt the three northern districts of Bố Chính, Địa Lý and Ma Linh, the land between the Hoành Sơn range and the Bạch Mã area in today's Quảng Bình and Quảng Trị.
Treaty
Cession of Bố Chính, Địa Lý and Ma Linh
- 1069
- Southeast Asia
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