Question: When was the deputy head of the "Abwehr" was born?
Related documents: [0]  [DOC] Hans Paul Oster (9 August 1887 – 9 April 1945) was a general in the Wehrmacht of Nazi Germany who was also a leading figure of the German resistance from 1938 to 1943. As deputy head of the counter-espionage bureau in the Abwehr (German military intelligence), Oster was in a strong position to conduct resistance operations under the guise of intelligence work; he was dismissed for helping Jews to avoid arrest. [END] 
[1]  [DOC] The Oster Conspiracy of 1938 was a proposed plan to overthrow German "Führer" Adolf Hitler and the Nazi regime if Germany went to war with Czechoslovakia over the Sudetenland. It was led by Generalmajor (major general) Hans Oster, deputy head of the "Abwehr" and other high-ranking conservatives within the Wehrmacht who opposed the regime for its behaviour that was threatening to bring Germany into a war that they believed it was not ready to fight. They planned to overthrow Hitler and the Nazi regime through a planned storming of the Reich Chancellery by forces loyal to the plot to take control of the government, who would either arrest or assassinate Hitler, and restore the exiled Wilhelm II as Emperor. [END] 
Answer: 
9 August 1887
9 August 1887