The temple is located in Yen Lac village, Moc Nam commune, Duy Tien town, Ha Nam province. This sacred temple has existed for a long time. According to the divine genealogy, ordination and legend, this place worships the Three Water Gods of the 18th Hung King (Hung Due Vuong) - legend has it that they are the children of the Eight Sea Dragon King and Lady Quy. He was instrumental in fighting the enemy and keeping the country's borders peaceful. Besides, the temple also worships Princess Tien Dung - daughter of King Hung and Chu Dong Tu - one of the four immortal gods of the nation.

To honor the tangible and intangible cultural values of the relic preserved by the people of Yen Lac (Moc Nam commune) for many generations, in 1996, Lanh Giang temple was recognized by the Ministry of Culture and Information. is a National Historical and Cultural Monument. Lanh Giang Temple Festival was included in the National Intangible Cultural Heritage List by the Minister of Culture, Sports and Tourism under Decision No. 2459/QD-BVHTTDL dated June 20, 2017. Temple Festival Lanh Giang is held in 2 terms; June (from the 18th to the 25th (lunar calendar); August festival is on the 25th (lunar calendar).

The festival aims to honor and commemorate the merits of the Three Great Kings who helped the people and the country defeat the Thuc invaders and keep the land of Van Lang peaceful. This is a typical festival bearing the cultural identity of the Vietnamese people in the lower Red River Delta, an integration of cultural layers in the historical process of the Vietnamese nation and a place to preserve and promote the value of Vietnamese food. practicing the belief of Mother Goddess worship in the process of building the cultural life of the people.