Question: Who gave Adolf Hitler a German shepherd puppy as a gift which was then taken care of by Tornow and was also his companion during his move to the Fuhrerbunker located underneath Reich Chancellery garden?

Context paragraphs:
Death of Adolf Hitler: Adolf Hitler killed himself by gunshot on 30 April 1945 in his "Führerbunker" in Berlin.  His wife Eva Braun committed suicide with him by taking cyanide.  That afternoon, in accordance with Hitler's prior instructions, their remains were carried up the stairs through the bunker's emergency exit, doused in petrol, and set alight in the Reich Chancellery garden outside the bunker.  Records in the Soviet archives show that their burnt remains were recovered and interred in successive locations until 1970, when they were again exhumed, cremated, and the ashes scattered.

Reich Chancellery: The Reich Chancellery (German: "Reichskanzlei" ) was the traditional name of the office of the Chancellor of Germany (then called "Reichskanzler") in the period of the German Reich from 1871 to 1945.  The Chancellery's seat from 1875 was the former city palace of Prince Antoni Radziwiłł (1775–1833) on Wilhelmstraße in Berlin.  Both the palace and a new Reich Chancellery building (completed in early 1939) were seriously damaged during World War II and subsequently demolished.

Last will and testament of Adolf Hitler: The last will and testament of Adolf Hitler was prompted by Hitler receiving a telegram from "Reichsmarschall" Hermann Göring asking for confirmation of Göring's succession, combined with news of Heinrich Himmler's attempted negotiations of surrender with the western Allies, and reports that Red Army troops were within a block or two of the Reich Chancellery.  It was dictated by Adolf Hitler to his secretary Traudl Junge in his Berlin "Führerbunker" on 29 April 1945, the day he and Eva Braun married.  They committed suicide the following day, 30 April, two days before the surrender of Berlin to the Soviets on 2 May, and just over a week before the end of World War II in Europe on 8 May.  It consisted of two separate documents, a will and a political testament.

Fritz Tornow: Tornow had the task of taking care of Hitler's beloved German shepherd Blondi, as well as her puppies, and Eva Braun's dogs.  Additionally, Tornow had his own pet dachshund.

Blondi: Blondi (1941 – 29 April 1945) was Adolf Hitler's German Shepherd, a gift as a puppy from Martin Bormann in 1941.  Blondi stayed with Hitler even after his move into the "Führerbunker" located underneath the garden of the Reich Chancellery on 16 January 1945.

Borsig Palace: The Borsig Palace (German: "Palais Borsig" ) was an iconic building at the corner of Voßstraße and Wilhelmstraße in the center of Berlin and one of the grandest Italianate villas in Germany.  Completed in 1877 for industrialist Albert Borsig, who died before he could move in, the building served for a time as a bank.  In 1933 it became the residence of Vice-Chancellor Franz von Papen, where dramatic scenes relating to the Night of the Long Knives would play out just one year later.  In the aftermath, Palais Borsig was converted into the new headquarters of the Sturmabteilung (Storm Troopers) on Adolf Hitler's direct orders.  It was then integrated into the New Reich Chancellery by Albert Speer in 1938.  The palace was severely damaged in World War II and, together with Hitler's Chancellery, demolished by the Soviet forces in 1947.

Vorbunker: The Vorbunker (upper bunker or forward bunker) was an underground concrete structure originally intended to be a temporary air-raid shelter for Adolf Hitler and his guards and servants.  It was located behind the large reception hall that was added onto the old Reich Chancellery, in Berlin, Germany, in 1936.  The bunker was officially called the "Reich Chancellery Air-Raid Shelter" until 1943, when the complex was expanded with the addition of the "Führerbunker", located one level below.  On 16 January 1945, Hitler moved into the "Führerbunker".  He was joined by his senior staff, including Martin Bormann.  Later, Eva Braun and Joseph Goebbels moved into the "Führerbunker" while Magda Goebbels and their six children took residence in the upper "Vorbunker".  The Goebbels family lived in the "Vorbunker" until their deaths on 1 May 1945.

Elena Rzhevskaya: Elena Moiseevna Rzhevskaya (Russian: Еле́на Моисе́евна Рже́вская, born Elena Kagan; 27 October 1919 – 25 April 2017) was a writer and former Soviet war interpreter.  In April and May, 1945, she participated in the Battle of Berlin.  According to her memoirs, called in English "Memories of a War-time Interpreter" ("Записки военного переводчика"), she was a member of the Soviet unit searching for Adolf Hitler in the ruins of the Reich Chancellery.  The Führer's corpse was, according to her own words, found by soldier Ivan Churakov on 4 May 1945.  Four days later, on 8 May, Colonel Vassily Gorbushin gave her a small box that allegedly contained Hitler's jawbones.  During the identification of the corpse, the Soviet team worked in top secret conditions.  It consisted of only three people, Rzhevskaya being one of them.  She and Gorbushin allegedly managed to find in Berlin, Käthe Heusermann, an assistant of Hugo Blaschke, Hitler's personal dentist.  She confirmed the identity of the Nazi leader.  The information was, however, suppressed by Joseph Stalin, who later ordered the facts not to be publicized.

Erich Kempka: SS-"Obersturmbannführer" Erich Kempka (16 September 1910 – 24 January 1975) was a member of the SS in Nazi Germany who served as Adolf Hitler's primary chauffeur from 1934 to April, 1945.  He was present in the area of the Reich Chancellery on 30 April 1945, when Hitler shot himself in the "Führerbunker".  Kempka delivered the gasoline to the garden behind the Reich Chancellery where the remains of Hitler and Eva Braun were burned.

Oster Conspiracy: 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.

Supporting paragraphs: Fritz Tornow Blondi
Answer: Martin Bormann