Question: Kurt Ferdinand Friedrich Hermann von Schleicher was a close advisor to which German military officer who served as the elected President of Germany from 1925 until his death in 1934?
Context: Kurt Ferdinand Friedrich Hermann von Schleicher (   ; 7 April 1882 – 30 June 1934) was a German general and the last Chancellor of Germany during the era of the Weimar Republic.  An important player in the German Army's efforts to avoid the restrictions of the Treaty of Versailles, Schleicher rose to power as a close advisor to President Paul von Hindenburg.  In 1930 he was instrumental in the toppling of Hermann Müller's government and the appointment of Heinrich Brüning as Chancellor.  From 1932 he served as Minister of War in the cabinet of Franz von Papen, whom he succeeded as Chancellor on 3 December.  During his brief term, Schleicher negotiated with Gregor Strasser on a possible secession of the latter from the Nazi Party but their scheme failed.  The Chancellor then proposed to President Hindenburg to disperse the Reichstag and rule as a de facto dictator, a course of action Hindenburg rejected.  On 28 January 1933, facing a political impasse and deteriorating health, Schleicher resigned and recommended the appointment of Adolf Hitler in his stead.  Seventeen months afterwards he was murdered on the orders of Hitler during the Night of the Long Knives. The Night of the Long Knives (German:    ), also called Operation Hummingbird (German: "Unternehmen Kolibri") or, in Germany, the Röhm Putsch (German spelling: "Röhm-Putsch" ), was a purge that took place in Nazi Germany from June 30 to July 2, 1934, when the Nazi regime carried out a series of political extrajudicial executions intended to consolidate Hitler's absolute hold on power in Germany.  Many of those killed were leaders of the "Sturmabteilung" (SA), the Nazis' own paramilitary organization, colloquially known as the "Brownshirts" due to the color of their uniforms.  The best-known victim of the purge was Ernst Röhm, the SA's leader and one of Hitler's longtime supporters and allies.  Leading members of the left-wing Strasserist faction of the Nazi Party (NSDAP), along with its figurehead, Gregor Strasser, were also killed, as were establishment conservatives and anti-Nazis, such as former Chancellor Kurt von Schleicher and Bavarian politician Gustav Ritter von Kahr, who had suppressed Adolf Hitler's Munich Beer Hall Putsch in 1923.  The murders of SA leaders were also intended to improve the image of the Hitler government with a German public that was increasingly critical of thuggish Brownshirt tactics. Constantin Brătescu (March 8, 1892 - April 13, 1971) was a Romanian Major-General during World War II.  In 1941, he served first as Chief Propaganda Section General Staff (Romania's Propaganda Minister) and then as a Romanian liaison officer to the German Military Mission, meaning that he served as a German military officer during Operation Barbarossa and the Axis Invasion of the Soviet Union.  Starting in 1942 Brătescu was a Romanian General Officer (at the rank of Major-General) and commanded the 1st Cavalry Division throughout the campaign against the Soviets, fighting in such engagements as Operation Barbarossa, Operation Blue, and the Battle of Stalingrad.  Following the surrender of Friedrich Paulus' 6th Army at the Battle of Stalingrad, Brătescu became a prisoner of war and was held captive from 1943 to 1948.  Finally, in 1948, he was released after five years of imprisonment and subsequently retired from active service.  Bratescu ultimately died twenty-three years later, in 1971, at the age of seventy-nine. Herms Niel, real name "Ferdinand Friedrich Hermann Nielebock" (born 17 April 1888 in Nielebock (now part of Jerichow) — died 16 July 1954 in Lingen), was a German composer of military songs and marches. Paul Ludwig Hans Anton von Beneckendorff und von Hindenburg (   ), known generally as Paul von Hindenburg (] ; 2 October 1847 – 2 August 1934) was a German military officer, statesman, and politician who largely controlled German policy in the second half of World War I and served as the elected President of Germany from 1925 until his death in 1934.  He played the key role in the Nazi "Seizure of Power" in January 1933 by appointing Adolf Hitler chancellor of a "Government of National Concentration", even though the Nazis were a plurality in cabinet. Friedrich Hermann von Schönberg, 1st Duke of Schomberg, 1st Count of Mertola, (French: "Frédéric-Armand"; Portuguese: "Armando Frederico"; 6 December 1615 – 1 July 1690) was a marshal of France and a General in the British and Portuguese Army.  He was killed at the Battle of the Boyne in 1690. Ferdinand von Bredow (16 May 1884, in Neuruppin – 30 June 1934, in Berlin) was a German "Generalmajor" and former head of the "Abwehr" (the military intelligence service) in the Reich Defence Ministry (Reichswehrministerium) and deputy defence minister in Kurt von Schleicher's short-lived cabinet (December 1932 - January 1933). Hermann Josef von Kuhl (2 November 1856 – 4 November 1958) was a Prussian military officer, member of the German General Staff, and a "Generalleutnant" during World War I.  One of the most competent commanders in the German Army, he retired in 1919 to write a number of critically acclaimed essays on the war.  Hermann von Kuhl is one of only five recipients to be distinguished with both the "military class" and "peace class" of the Pour le Mérite, Prussia's and Germany's highest honor. General Hermann von der Lieth-Thomsen, born Hermann Thomsen, (10 March 1867 – 5 May 1942) was a German military aviation pioneer, a senior air commander in the Imperial German Army Air Service during World War I and a founding father of the German military aviation. The Hedwig von Wissmann was a German steamboat on Lake Tanganyika, which became a feature in the story behind the film "The African Queen".  She was sister vessel to the larger "Hermann von Wissmann" on Lake Nyasa, and like that vessel originally used as a gunboat against slavers.  Hedwig von Wissmann was the wife of the German explorer and colonial administrator Hermann von Wissmann who had raised funds for both boats.
Answer: Paul von Hindenburg