Third Reich high ranking officials at the terrace of Berghof, 1944. Hitler's aide-de-camp, SS-Obersturmführer Otto Günsche, is in the center. The Berghof was Adolf Hitler's residence in the Obersalzberg of the Bavarian Alps near Berchtesgaden, Bavaria, Germany. Other than the Wolfsschanze ("Wolf's Lair"), his headquarters in East Prussia for the invasion of the Soviet Union, Hitler spent more time at the Berghof than anywhere else during World War II. It was also one of the most widely known of his headquarters, which were located throughout Europe. Guests at the Berghof included political figures, monarchs, heads of state and diplomats along with painters, singers and musicians. The important visitors personally greeted on the steps of the Berghof by Hitler included David Lloyd George (3 March 1936), the Aga Khan (20 October 1937), Duke and Duchess of Windsor (22 October 1937), Kurt von Schuschnigg (12 February 1938), Neville Chamberlain (15 September 1938) and Benito Mussolini (19 January 1941). On 11 May 1941 Karlheinz Pintsch visited the Berghof to deliver a letter from Rudolf Hess informing him of his illegal flight to Scotland. At the end of July 1940 Hitler summoned his military chiefs from OKW and OKH to the Berghof for the 'Berghof Conference' at which the 'Russian problem' was studied.