"Anton Ludwig Friedrich August von Mackensen (6 December 1849 – 8 November 1945), born August Mackensen, was a German field marshal. He commanded with extreme success ...
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during the First World War and became one of the German Empire´s most prominent and competent military leaders. After the Armistice, Mackensen was interned for a year. He retired from the army in 1920 and was made a Prussian state councillor in 1933 by Hermann Göring. During the Nazi era, Mackensen remained a committed monarchist and sometimes appeared at official functions in his First World War uniform. He was suspected of disloyalty to the Third Reich, although nothing was proven against him." - (en.wikipedia.org 23.11.2019)