What was Johann Ernst Plamann's pupil, the future German chancellor, Duke of?
Johann Ernst Plamann Johann Ernst Plamann (22 June 1771, Repzin3 September 1834, Berlin) was a German child educator. He based his work on the ideas of Johann Heinrich Pestalozzi and Friedrich Ludwig Jahn. Among his pupils was future German chancellor Otto von Bismarck.
John Frederick II, Duke of Saxony John Frederick II of Saxony (8 January 1529 – 19 May 1595), was Duke of Saxony (1554–1556).