Dien Tho Pagoda was built during the Later Le dynasty, specifically under the reign of Lord Vo Vuong Nguyen Phuc Khoat (18th century). Initially, it was just a small thatched, mud-walled hermitage built on foundations bearing traces of ancient Cham architecture. Only the Buddha statue and the Cham altar remain as testament to its ancient origins. In the 18th century, the pagoda underwent a major renovation, taking on its current architectural form. All historical documents have been lost over time, leaving only an ancient horizontal lacquered board. The pagoda belongs to the Mahayana Buddhism sect and underwent several renovations during the Nguyen dynasty.
Notably, Dien Tho Pagoda preserves 5 precious royal decrees of the Nguyen dynasty:
- Decree of 'Quan Thanh De Quan Ho Quoc Ty Dan' (7th year of Tu Duc – 1854)
- Decree of 'Quan Thanh De Quan Bao An Chanh Truc Huu Thien Don Ngung Thanh Hoang chi than' (33rd year of Tu Duc – 1880)
- Decree of 'Duc Bao Trung Hung De Quan' (2nd year of Dong Khanh – 1887)
- And two decrees from the reigns of Duy Tan (1909) and Khai Dinh (1924)
These royal decrees not only affirm the pagoda's historical value but also serve as evidence of royal patronage for a typical village pagoda in Quang Tri.


