"Arnold Alexander Herbert Otto Heinrich Constantin Graf von Keyserling (February 9, 1922 in Hamburg – September 7, 2005 in Matrei, Tyrol), better known as Arnold Keyserling, ...
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was a German philosopher and theologian. He was the son of Hermann von Keyserling and great-grandson of Otto von Bismarck." - (en.wikipedia.org 10.12.2021)
