Dai Dong Communal House
Introduction
Relic ranking level: Dai Dong Communal House was ranked at City level under Decision No. 844/QĐ-UBND dated 25/02/2026 of the Hanoi City People's Committee
1. Historical events and figures
Kieu Phu is an ancient land formed and developed over a long time, associated with vernacular place names still preserved today such as: Dong Thit, Trai Quen, Ao Sen, Dat Do, Doi Muon, Trai Ro, and a system of hills and mounds interspersed with ponds, lakes, and rice fields nestled on the left bank of the Tich Giang River – the western rampart protecting Thang Long - Hanoi.
Based on the genealogical record and royal edicts still kept at the relic site, together with accounts by village elders, Dai Dong Communal House worships Tam Lang, namely Trieu Lang, Than Lang, and Gia Lang, together with Princess Duc Thuong Dang Bao An. The legends of these deities can be summarized as follows:
In the reign of the sixth Hung King, when the country was prosperous and the world at peace, there was Hung Chieu Cong, the elder brother of the Hung King. At the age of 18, Mr. Hung Chieu Cong served as a mandarin-lang of Yen Son district. One day, he went to Liep Ha hamlet and saw the beautiful landscape with the Tich River winding around, so he built a temporary palace to live in, called Dai Phu Palace. Nearby, in Vinh Phuc camp, there was a gentle and virtuous woman surnamed Nguyen named Kim Nuong; Chieu Cong fell in love with her and married her. Unfortunately, the couple was over fifty years old but still had no children. They then used their wealth to help the poor without hesitation. After three or four years like this, Heaven was moved. One day, the sky suddenly turned stormy and dark, and the Tich Giang River roared like thunder. The next morning, he went out and saw a deep pool three or four truong deep in front of the palace. That night, Chieu Cong dreamed of three men of unusual appearance coming in from the pool; one young man called himself Trieu, one called himself Than, and one called himself Gia, sons of Lac Long Quan and Au Co. The three brothers guarded Mao Khe stream and, obeying orders, came to be sons of Chieu Cong. Before he heard all the words, he suddenly woke and knew it was a dream. From then on, Nguyen Thi became pregnant. On the 2nd day of the 5th month of the Nam Thin year, she gave birth to a single sac that opened into three sons. The three sons had unusual appearances. Chieu Cong, based on the dream, named the first Trieu, the second Than, and the third Gia. When the three were three years old, Chieu Cong was invited by the king to return to court. Chieu Cong brought Nguyen Thi and the three children to court to pay homage to the king. The Hung King saw that the three had unusual appearances and asked Chieu Cong about the matter. He then reported the story in his dream. The king knew the three were Water Deities incarnate, so he kept them in the palace to raise. At the age of 12, a teacher was found for them; three years later, the three had mastered both letters and martial arts. At the age of 18, Chieu Cong passed away; the three returned to their homeland to hold the funeral, and two years later their mother also passed away.
Three years later, the country was invaded by the Yin enemy, the Thanh Linh deity, who fortified at Chau Son Mountain. Facing this perilous situation, the Hung King set up an altar to report to Heaven, Earth, and the hundred deities. Three days later, dark rain and storm appeared, and a strange man more than nine thuoc tall appeared sitting on the main road, talking and laughing, stamping his feet and waving his hands. Finding this strange, people went in to report to the king. The king had him brought into the altar and asked how the enemy would fare. The stranger calculated a hexagram and said that in the country there were three men who were truly Water Deities named Trieu, Than, and Gia. The king should order the three brothers to send troops to surround the enemy first, and afterward seek talented people throughout the world, and the enemy need not be feared. Having spoken, the man disappeared, and the king knew he was Lord Long Quan. The Hung King then ordered a troop to receive the three young men and advance first to check the enemy. At the same time, the king sent envoys to recruit talented people to help the country. One day, an envoy came to Phu Dong Village, Vu Ninh District, Kinh Bac Region, and recruited Saint Giong. Saint Giong joined with the three young men to fight a battle, captured and killed Thanh Linh Deity alive, and the enemy troops were scattered. After defeating the enemy, Saint Giong rode his horse to Soc Son Mountain and flew back to heaven; the king conferred on him the title Phu Dong Thien Vuong. The three young men Trieu, Than, and Gia returned to court, and the king granted them high titles, but they asked to return to live in Yen Son District, at Dai Phu Palace. The king granted them the revenues of Yen Son District, and they traveled between Vinh Phuc and Dai Phu camps to teach the people farming and sericulture. One day, the three young men went to Mao Khe Stream at Tan Vien Mountain and said to each other that this was the home of our brothers. Having spoken, dark rain and storm suddenly appeared, the river water rose, and the three went down into the stream and transformed; that day was the 10th day of the 7th month. Hearing the news, the local people made a petition to the king. The king conferred on Lord Trieu the title First Linh Khe Great King, on Lord Than the title Second Linh Khe Great King, and on Lord Gia the title Third Linh Khe Great King. The edict was sent to Liep Ha Village, and the two camps Dai Phu and Vinh Phuc established temples for worship; the date was the 10th day of the 7th month. The three young men had already transformed, and a few followers returned and spoke with the people, then made a petition to the king for conferral.
Trieu Lang was the first Linh Khe Great King
Than Lang was the second Linh Le Great King
Gia Lang was the third Linh Khe Great King
The royal edict was issued to Liep Ha, Dai Phu, and Vinh Phuc, and the two camps established temples for worship from then on.


