Thousands of years ago, Kinh Duong Vuong reigns over the Xich Quy kingdom
that spread in the North up to the Blue river; in the South to Central Vietnam;
in the West up to Sseutchouan; and in the East as far as the sea. Kinh Duong Vuong
married Long Nu, a princess from Dong Dinh Ho. Because of Long Nu's origin, their
son Sung-Lam, popularly known as Lac Long Quan, was believed to be descended from
the line of the Dragons. He succeeded to the throne of his father, and governed
the Lac Viet tribe. Lac Long Quan had superhuman strength. He liked to stay near
the water, so he resided along the seashore. Lac Long Quan protected Lac Viet
people from being harmed by devils and monsters. He helped them fight against
nature disasters. He taught them how to crop and to sew. He also taught them to
cook rice in the bamboo tube. At that time, De-Lai is a King of another northern
tribe made a trip to the South. De-Lai has a daughter named Au Co. She is very
beautiful. One day, Lac Long Quan wondered on the mountain area. He met Au Co
and fell in love with her. He built her a castle on a rocky mountain. Lac Long
Quan then married Au Co and lived with her. Au Co gave birth to a big sac. Inside
there were one hundred eggs. Each egg in turn hatched into one little boy. These
boys grew up very fast, became brave strong men. Even though Lac Long Quan had
a big family, he still missed his old living near the Coast. One day, he said
to Au Co: - I am from the Dragon line. I like to dwell in the Coast. You are from
the Fairy line, you like to be on highlands. Therefore we cannot live together.
It is better that we separate now. You shall take fifty children to the highlands
and I shall take fifty children to the Coast. The children then spread out, divided
and ruled the lands. They were ancestors of Lac Viet.