Citadel of Hồ Dynasty is a citadel in Vietnam, constructed by the Hồ Dynasty (1400-1407). It is located in Tay Giai commune, Vinh Loc District, Thanh Hoa Province, in Vietnam's North Central Coast region. It was the capital of Viet Nam from 1398 to 1407.
The citadel of the Ho Dynasty was built in 1397 by Ho Quy Ly who was the highest-ranking mandarin of the Tran Dynasty at the time. After the citadel was completed, Ho Quy Ly forced King Tran Thuan Tong to move the capital from the citadel of Thang Long (Ha Noi) to Thanh Hoa. In the second month of the year of Dragon (1400), after coming to the crown to replace the King Tran, Ho Quy Ly renamed the country Dai Ngu (1400-1407), the citadel of the Ho Dynasty officially became the capital citadel. The citadel of the Ho Dynasty is also known as names of An Ton, Tay Do, Tay Kinh, Tay Nhai,Tay Giai.
The 14th -century Ho Dynasty citadel, built according to the feng shui principles, testifies to the flowering of neo-Confucianism in late 14th century Viet Nam and its spread to other parts of east Asia. According to these principles it was site in a landscape of great scenic beauty on an axis joining the Tuong Son and Don Son mountains in a plain between the Ma and Buoi rivers. The citadel buildings represent an outstanding example of a new style of south-east Asian imperial city.
Citadel of Ho Dynasty was constructed from huge stone slabs in rectangular shape for approx 800m in long and wide. There are 4 gates, South (Main entrance), North, East and West. The citadel of the Ho Dynasty is considered as the only stone citadel remaining in Southeast Asia and is one of the few remains in the world.
The citadel of the Ho Dynasty has met the two criteria specified in the World Heritage Convention. It is the criterion "to exhibit an important interchange of human values, over a span of time or within a cultural area of the world, on developments in architecture or technology, monumental arts, town-planning or landscape design," and the criterion "to be an outstanding example of a type of building, architectural or technological ensemble or landscape which illustrates significant stage in human history."
The citadel has recognized as a World Cultural Heritage by the UNESCO at the 35th session of the World Heritage Committee on June 27th 2011 in Paris, France.