The origin of the Großdeutschland Division was the Kommando der Wachtruppe (Command of the Guard Troop) in Berlin, and the infantry-training regiment in Döberitz. This photo shows a guard company of the Kommando der Wachtruppe marching through Berlin's Brandenburg Gate to the Ehrenmal (Honor Memorial) in 1934. The famous guard parade with band took place every Sunday, Tuesday and Thursday. The parade route led from Moabit through the Brandenburg Gate and along the Unter den Linden to the war memorial in the Schinkel Building. The officer commanding the guard parade usually rode the white horse "Alaric." The horse, too, went on to become quite famous and is well-remembered by many Berliners.
Source :
Book "Panzer Grenadier Division Grossdeutschland" by Horst Scheibert
Book "The History of the Panzerkorps Grossdeutschland" by Helmuth Spaeter