Thánh Gióng
Thánh Gióng (chữ Nôm: 聖揀), also known as Phù Đổng Thiên Vương (chữ Hán: 扶董天王, Heavenly Prince of Phù Đổng), Sóc Thiên Vương (chữ Hán: 朔天王), Ông Gióng (翁揀, sir Gióng) and Xung Thiên Thần Vương (冲天神王, Divine Prince of Heaven) is a mythical folk hero of Vietnam's history and one of The Four Immortals. According to the legend, Gióng was a boy who rode on an iron horse and won against the enemy of the state. The most well known version of the legend had him battle against the Chinese army, thus, he is considered the first anti-invasion hero of the Vietnamese. Some researchers believe he is the Vietnamese version of Vaiśravaṇa.
The folk hero was a popular subject for poets, such as Cao Bá Quát who wrote an epic poem to Thánh Gióng in the 19th century. Today Thánh Gióng features with other legendary figures such as Kinh Dương Vương, Âu Cơ, Sơn Tinh – Thủy Tinh, in elementary school texts.