Adolf von Liebenberg, or Ritter Adolf Liebenberg von/de Zsittin (September 15, 1851, Como, Lombardy - May 6, 1920, Vienna) was an Austrian researcher for the farm products (Getreidewissenschaft(ler), Agrarfachmann).
Libertas Schulze-Boysen, Resistance fighter, born November 20, 1913 in Paris, died December 22, 1942 in Berlin Plötzensee Prison, granddaughter of Philip von Eulenburg, spent her childhood at Liebenberg Castle.
Fürst zu Eulenburg und Hertefeld Graf von Sandels (Starnberg, 19 September 1881 - Weeze, 1 August 1963), married at Liebenberg, 21 May 1904 Marie Freiin Mayr von Melnhof (Vienna, 8 April 1884 - Weeze, 3 February 1960)
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Alexandrine (Adine) Elise Klara Antonia Gräfin zu Eulenburg (Liebenberg, 1 July 1880 - Friedelhausen, 3 February 1957), married at Liebenberg, 15 June 1910 Eberhard Graf von Schwerin (Weilburg, 11 July 1882 - Giessen, 4 April 1954)