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.
Albert Frederick, Duke of Prussia Albert Frederick (German: "Albrecht Friedrich" , Polish: "Albrecht Fryderyk" ; 7 May 1553, in Königsberg – 28 August 1618, in Fischhausen, Rybaki) was Duke of Prussia from 1568 until his death. He was a son of Albert of Prussia and Anna Marie of Brunswick-Lüneburg. He was the second and last Prussian duke of the Ansbach branch of the Hohenzollern family.