According to the legend, Genius Kim Quy, a Golden Tortoise, gave Thuc Phan (An Duong Vuong) a magic crossbow which could kill tens of thousands of enemy soldiers at a shot. However, the King’s daughter My Chau told the secret of her father’s magic crossbow to her husband Trong Thuy, the son of rebel Chinese general Trieu Da, and thereby unwittingly enabled Trieu Da to conquer Co Loa in 208 B.C. Learned of the reason for his defeat, King An Duong is said to have killed his daughter and then committed suicide. Nowadays, in Co Loa citadel, there exists many vestiges still reminding you of the episodes of the legend.
Taking place from the 6th to the 16th day of the Lunar New Year at An Duong Vuong temple in Dong Anh District, on the outskirts of Hanoi, Co Loa Festival based on the legend of An Duong King of Au Lac and his magic crossbow. All of the eight communes (including Co Loa Commune and the establishing relations between seven communes) hold the incense offering ceremony at the communal house. At Thuong Temple, village officials and mandarins hold the similar ceremony and revise the king’s contributions and achievements.
During the festival, there are many traditonal games such as human chess, wrestling, cock fighting, swings, rope climbing, card playing, and cheo and tuong singing. On the final day of the festival, a grand farewell ceremony will be held at the temple. The rituals are the same as in the main festival day. After the rituals, the cult table of god will be returned to the sanctuary. Local people enjoy the god’s favor and expect a year of prosperity and protection from the god