Hung Kings Memorial it was 25 April 2018. The Hùng Kings' Temple Festival (Vietnamese: Giỗ Tổ Hùng Vương or lễ hội đền Hùng) is a Vietnamese festival held annually from the 8th to the 11th days of the third lunar month in honour of the Hùng Vương or Hùng Kings. The main festival day - which is a public holiday in Vietnam since 2007 - is on the 10th day.[1][2][3][4][5] Although the official name is Death Anniversary of the Hung Kings (Vietnamese: Giỗ Tổ Hùng Vương), the date is traditional and does not mark any specific death date of any Hung King source - https://en.wikipedia.org/wiki/H%C3%B9ng_Kings%27_Festival