Bai Ngoai Communal House

Relic ranking level: Bai Ngoai Communal House was ranked at City level under Decision No. 844/QĐ-UBND dated February 25, 2026, of the Hanoi City People's Committee

Based on the results of the survey and research at the relic by the documentation team, Bai Ngoai Communal House, Bai Ngoai Hamlet, Kieu Phu Commune, Hanoi City belongs to the type of relic: Historical - Cultural.

1. Historical events and figures

According to the genealogical record and royal edicts still kept at the relic, together with accounts from village elders, Bai Ngoai Communal House worships the three Great Kings, Trieu Lang, Than Lang, and Gia Lang. Their legend can be summarized as follows:

In the reign of the sixth Hung King, when the country was prosperous and the world was at peace, there was Hung Chieu Cong, elder brother of the Hung King. At the age of 18, Hung Chieu Cong served as an official in Yen Son District. One day, he went to Liep Ha Village and saw beautiful scenery with the Tich River winding around, so he built a traveling palace to live in, called Dai Phu Palace. Nearby, in Vinh Phuc Camp, there was a gentle and virtuous woman of the Nguyen family 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 therefore used their wealth to help the poor without hesitation. After three or four years of doing so, they moved Heaven. One day, the sky suddenly became dark with rain and storm, 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 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 obeyed a command to become Chieu Cong's sons. Before he had heard all the words, he suddenly awoke 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 bundle that opened into three sons. The three sons had unusual appearances. Recalling the dream, Chieu Cong named the first son Trieu, the second son Than, and the third son Gia. When the three boys were three years old, Chieu Cong was invited by the king to return to court. Chieu Cong led Nguyen Thi and the three children to court to bow before the king. Seeing the three boys' unusual appearance, the Hung King asked Chieu Cong about the matter. He then reported the story of the dream. The king knew the three boys were Water Deities reborn, so he kept them in the palace to raise. When they were 12 years old, teachers were sought for them, and three years later the three had mastered both letters and martial arts. When they were 18 years old, Chieu Cong passed away; the three returned to their native land to conduct 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.