Citadel of the Hồ Dynasty (Vietnamese: Thành nhà Hồ, chữ Nho: 城茹胡; also called Tây Đô/西都castle or Tây Giai castle) is a 15th century stone fortress in Thanh Hóa, Vietnam. It served as the western capital of the Hồ dynasty (1398–1407) while also being an important political, economic, and cultural centre in the 16th to the 18th century. It is located in modern Tây Giai commune, Vĩnh Lộc District, in Thanh Hóa Province, in Vietnam's North Central Coast region.^[1]

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Quick Facts UNESCO World Heritage Site, Location ...

Citadel of the Ho Dynasty

UNESCO World Heritage Site
The South (fore) gate of Tay Do castle
Location	Tây Giai, Vĩnh Lộc District, Thanh Hóa Province, North Central Coast, Vietnam
Includes	Inner Citadel La Thanh Outer Walled Section Nam Giao Altar
Criteria	Cultural: (ii), (iv)
Reference	1358
Inscription	2011 (35th Session)
Area	155.5 ha (384 acres)
Buffer zone	5,078.5 ha (12,549 acres)
Coordinates	20°4′41″N 105°36′17″E
Location of Citadel of the Hồ Dynasty in Vietnam

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Tây Đô castle is rectangular in shape. Its north-south side is 870.5 m (2,856 ft) in length and its east-west side is 883.5 m (2,899 ft) in length. There are four gates: one at the south (fore gate), one at the north (back gate), one at the east (left gate), and one at the west (right gate). The southern gate is 9.5 m (31 ft) high and 15.17 m (49.8 ft) wide. The castle was constructed from stone blocks, each of which is 2×1×0.7 m (6.6×3.3×2.3 ft) in size on average. Except for its gates, the castle is mostly ruined.

The citadel was built in 1397. It was composed of an Inner Citadel made of limestone, the La Thanh Outer Wall and a 155 hectare altar. The design and decoration of architectural elements in terms of space management was meant to showcase a centralized imperial city ruled by royal power, based on Confucianism mixed with a Buddhist culture. The construction of the castle was built according to fengshui principles. The citadel was inscribed on UNESCO World Heritage Sites on June 27, 2011.^[1]

• General view
• South gate
• North gate
• East gate
• A stone cannonball found in Tây Đô castle
• King's Well