Adolphus married Friederike Amalia Wilhelmine Viktoria Hohenzollern on 19 Nov 1890 in Berlin, Germany. Friederike (daughter of Friedrich III. Wilhelm Nikolaus Karl ( Kaiser ,King of Prussia) Hohenzollern and Victoria Adelaide Mary Louise Saxe Coburg and Gotha) was born on 12 Apr 1866 in Neues Palais, Potsdam, Brandenburg, Germany; died on 13 November 1929 in Bonn, Nordrhein-Westfahlen, Germany. [Group Sheet] [Family Chart]