His death and the ensuing sympathy of the German public toward a member of the former German royal house greatly bothered Hitler, and he began to see the Hohenzollerns as a threat to his power.
His death and the ensuing sympathy of the German public revealed that despite years of Nazi ideologic indoctrination large parts of the German society still were affectionately bound to the former former German royal houses. This greatly bothered Hitler, and he began to see the Hohenzollerns as a threat to his power.