Hussites – Wikipedia

The Hussites (Czech: Husité or Kališníci “Chalice People”; Latin: Hussitae or Calixtinism) were a Czech proto-Protestant Christian movement that followed the teachings of reformer Jan Hus (fl. 1401–1415), a part of the Bohemian Reformation.
— Read on en.m.wikipedia.org/wiki/Hussites