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.
Johann Cothmann Johann Cothmann (1588 in Lemgo - 1661, Güstrow) was a German jurist and diplomat. He was also a member of the Fruitbearing Society. Cothmann was the son of Lemgo mayor Dietrich Cothmann. His brother was later mecklenburgian chancellor Ernst Cothmann (1557-1624).