Hòa Hảo
Huỳnh Phú Sổ (; 15 January 1920 – 16 April 1947), popularly known as Đức Thầy (lit. "Virtuous Master") or Đức Huỳnh Giáo Chủ (lit. Virtuous [Sect] Founder (ie Patriach) Huynh), was the founder of the Hòa Hảo religious tradition.