'Berthold Schwarz (im 14. Jahrh)', 1934. Berthold Schwarz, 1380. Semi- legendary German Franciscan monk of Freiburg, whose real name was Konstantin Anklitzen, was nicknamed Schwarz ('black') due to his chemical experiments. Around 1320 he is said to have brought gunpowder (or guns) into practical use.From "Die Großen der Weltgeschichte". [Eckstein-Halpaus, Dresden, 1934]