(Saint) Wenceslaus I (Czech: Václav [ˈvaːtslaf] (listen); c. 907 – September 28, 935), Wenceslas I or Václav the Good[1] was the duke (kníže) of Bohemia from 921 until his assassination in 935. His younger brother, Boleslaus the Cruel, was complicit in the murder. MORE WIKI