King Hung the sixth was defending Vietnam from invaders when he heard of a 3-year-old boy named Giong who had not yet spoken but was growing quickly. Giong asked the king's messenger for armor, a helmet, and an iron horse to help fight the invaders. Giong rode into battle wielding a whip and bamboo branch, defeating the invaders. After his victory, Giong rode up to heaven from Soc Son Mountain, and a temple was built in his honor. His victory is still commemorated annually in Vietnam.