Bat Ngo Communal House

Bat Ngo Communal House worships the village tutelary deity Dang Sy Dai Vuong (honored as Duc Thanh De Nhat). Bat Ngo Communal House faces southeast and has a dinh-shaped architecture; the main hall has 5 bays. The relic still preserves valuable artifacts such as a Le-era incense table, palanquins, horizontal lacquered boards, steles, offering trays, etc.

During the Hung Vuong period, in Long Bien (present-day Hanoi), there was Mr. Dang Van (descendant of Cham Anh) who married Mrs. Ta Thi Can (also a descendant of Thi Le Cham Anh). The two elderly people had no children, so they adopted two nephews, who called them their biological uncle and aunt, Mr. Dang Xa and Mr. Dang Lang. Later the couple gave birth to a son, Mr. Dang Sy. Mr. Sy had a handsome appearance; at three he knew etiquette and knew respect and yielding; at 13 he could read textbooks and knew martial arts, so he was famous as Thanh Dong. When he grew up, he devoted himself to helping the local people, teaching them, so they knew morality and etiquette and literacy. He established fine customs and set up order and moral standards everywhere, so the people honored him as Chau Truong. His reputation reached the court; the King praised him and conferred titles on all three men, and assigned them the mission of going to districts and hamlets in the country to examine the customs of the people and set up offices everywhere to facilitate travel for propaganda and education of local people.

When they arrived at Lien Bat camp, they saw beautiful mountains and water, so they immediately set up their office and paid great attention to educating the people. After only one year, the people of the camp greatly admired their virtue and talent. Suddenly seven districts—Chau Nhai, Dam Nhi, Thuong Ngo, Quang Tin, Phien Nguy, Me Linh, and Cua Chan—had chieftains rebel and disrupt people's lives. Seeing that Mr. Sy was a virtuous man who could serve the people, the court was sure he could suppress the enemy and pacify the people. The King then appointed him as thai thu and assigned him the task of suppressing the enemy. He discussed and issued orders to districts and counties to recruit soldiers—tens of thousands responded—established an army, led troops straight to Cuu Chau district, and ordered the generals and soldiers to hold a defensive position.

Since he became thai thu, criminal and civil affairs in the province gradually stabilized, and the people lived in peace and prosperity. He died on the 15th day of the second lunar month at the age of 70.

Every year, from the 14th to the 16th day of the third lunar month, local people solemnly organize the Ceremony of Worshiping the Three Great Kings and the Festival of Procession of the Three Villages to commemorate the merits of the tutelary deities.

Bat Ngo Communal House was ranked as a historical-cultural relic by the People's Committee of the former Ha Son Binh province in 1988.