Hans Otto Erdmann

Hans Otto Erdmann (18 December 1896 - 4 September 1944) was a German  Wehrmacht officer, and member of the German Resistance.

Biography
Erdmann was born in Insterburg, East Prussia (modern Chernyakhovsk, Russia). In World War I Erdmann served as an officer in the German Army and later worked as a postal clerk. In 1935 he joined the Wehrmacht and was deployed at the Generalkommando in Königsberg in 1944 in the rank of Oberstleutnant (Lieutenant Colonel).

In June 1944 Claus von Stauffenberg informed Erdmann about the planned assassination of Hitler. In the Operation Valkyrie plannings, Erdmann was supposed to organize the occupation of public buildings and broadcasting stations in East Prussia.

After 20 July plot failed, Erdmann was arrested on 17 August 1944 and sentenced to death by the Volksgerichtshof under Günther Nebelung on 4 September 1944 along with Kurt Hahn, Gerhard Knaak, Heinrich Graf von Lehndorff-Steinort and Max Ulrich von Drechsel. Erdmann was hanged the same day at Plötzensee Prison in Berlin.