Klemens von Metternich
Klemens Wenzel Nepomuk Lothar, Prince von Metternich-Winneburg zu Beilstein, KOGF (; 15 May 1773 – 11 June 1859) was an Austrian diplomat who was at the center of European affairs for four decades as the Austrian Empire's foreign minister from 1809 and Chancellor from 1821 until the liberal Revolutions of 1848 forced his resignation.
Karl Leonhard
Karl Leonhard (21 March 1904 – 23 April 1988) was a German psychiatrist who was a student and collaborator of Karl Kleist, who himself stood in the tradition of Carl Wernicke. With Kleist, he created a complex classification of psychotic illnesses called Nosology. His work covered psychology, psychotherapy, biological psychiatry and biological psychology. Moreover, he created a classification of nonverbal communication.