It was said that, under 6th King Hung dynasty, there was an old couple in Giong village. They were kind and worked very hard but having a child was still their wish. Once day the wife came to the field and happened to see a large footprint, she then tried her foot on to compare. Accidentally she was pregnant and born a son twelve months later. The old couple was very happy but the baby himself could not smile or speak. He just lied wherever he was placed even though he was three years old.
The country at that time was under the danger of being occupied by invader from the North. The invader was so strong that the king had to ask envoys to search for those who could fight against the enemy. When hearing the envoy's voice, the child began asking his mother to call the envoy. The man came in and was surprise to hear that the child wanted to have a horse, an amour and a rod all made from iron to fight for the country's peace. Immediately he returned to the court and reported what had happened to the king and then all the requirements of the child in Giong Village were fulfiled through days and nights as the king's order.
It was more surprising that from the day the child met the envoy, he grew rapidly. The old couple did not have enough food and clothe for their son. However, all the villagers were always available to help them for no one of them wanted to live under the enemy's rule.
The invader was about to reach to the root of Trau mountain, all and sundry panicked. But at that time the envoy came with iron horse, amour and also rod. The child stretch his shoulders, rose himself and turned to a valiant man more than a truong2 high. The valiant man stately stepped to the horse and flapped it so that it was neighing loudly.
He then worn amour, took the rod and jumped on the horse's back. The horse began erupting fire and was push to Trau mountain to wait in front of the enemy.
There was drastic and keen fight between the powerful, dense enemy and the valiant man himself. The man on the iron horse fought so bravely that the enemy died like flies. Suddenly the ironed rod was broken but he continued struggling by rooting up all the bamboo groves and used it as his former weapon. The invader's willing was absolutely broken. They all shattered and trampled on others to run away. The man ran after them to Soc Son mountain. At last he reached the top of the mountain then put off his amour and finally flew into the heaven together with the horse.
To show the deep gratitude to the valiant man the king conferred a title Phu Dong Thien Vuong3 on him and set up a temple for memory.
It was said that fire erupted from the horse had made bamboo in Gia Binh province become shiny yellow called Tre Dang Nga4 and burnt a village on the way it came to the battle so the village was named Chay5 Village.


1. Thanh Giong means the saint of Giong village.
2. Truong: about 3,33m. It can be understood that the man was very tall.
3. Phu Dong Thien Vuong: General of God who came to help and protect people.
4. Tre Dang Nga: a kind of bamboo with shiny yellow color.
5. Chay: Mean being burnt