I am delighted to inform you that in yesterday's sitting of the Cabinet it was unanimously agreed that your application of last August for authority to return to Germany should be sanctioned in principle... While acquainting Your Imperial Highness of the Cabinet's decision, I cannot forbear expressing my own personal pleasure that this decision was given by the Cabinet on my proposal, and, as I may permit myself to add, as reached unanimously and without objection or criticism, after my statement had been heard.

Letter to the ex-Crown Prince (24 October 1923), quoted in W. M. Knight-Patterson, Germany. From Defeat to Conquest 1913-1933 (London: George Allen and Unwin, 1945), pp. 328-329.