Phù Đổng Thiên Vương

The story of Phu Dong Thien Vuong is particularly interesting in that it is one of the most ancient Vietnamese legends and contains several popular elements frequently encountered in ancient mythology: the savior, the virgin birth or "immaculate conception", the horse, and the prophecy.
Hung Vuong is a mythical Vietnamese dynasty. According to Vietnam Su Luoc (Vietnamese History Synopsis) by Tran Trong Kim (Bo Giao duc, Trung Tam Hoc lieu Xuat ban,1971), Lac Long Quan (The King of the Tribe Lac) was the son of Kinh Duong Vuong (circa 2879 BC) and the Dragon Lady (Long Nu). Lac Long Quan married Princess Au Co and they had one hundred children. Fifty of the children went to live with their mother in the northern mountain and the other fifty with their father to live by the sea in the South where he came from. Lac Long Quan made his first son King of Van Lang (former name of Vietnam), the first of 18 Hung Vuong Kings.
The story probably took place circa the third millennium B.C.
https://langhue.org/index.php/van-hoc/da-ngon-ngu-multilingual-articles/...