ヴェルナー・フォン・フリッチュ
After Schleicher resigned and Adolf Hitler was appointed Chancellor on 30 January 1933, Planck immediately resigned office and, put in temporary retirement, went abroad to East Asia for a year. Shortly after he came back to Germany, Kurt von Schleicher and his wife were shot at their Babelsberg home by members of the "Sicherheitsdienst" (SD) in the Night of the Long Knives on 30 June 1934. Planck tried in vain to get an explanation for his friend's murder. He also held several conspirative talks with Reichswehr General Werner von Fritsch which, however, did not lead to any conclusion.