THE STRUCTURE OF SƠN TÂY CITADEL THROUGH ANCIENT DOCUMENTS

According to the book "Đại Nam Nhất Thống Chí, during the Lê Trung Hưng dynasty, the Lê-Trịnh government already constructed the Sơn Tây citadel. Its location was in La Phẩm commune, Tiên Phong district, Quảng Oai prefecture (now part of Tản Hồng commune, Ba Vì district). Around the reign of Cảnh Hưng (1740-1786), to avoid floods, the citadel was relocated to Mông Phụ commune, Phúc Thọ district, Quốc Oai prefecture (now part of Đường Lâm commune, Sơn Tây town). In the early years of Gia Long's reign of the Nguyễn dynasty, the Sơn Tây citadel remained in its original position. In the third year of Minh Mạng's reign (1822), the citadel was moved to the locations of two communes, Thuần Nghệ and Mai Trai, which are now situated in the center of present-day Sơn Tây town, including the Quang Trung, Ngô Quyền, and Lê Lợi wards.