On transfer to active reserve status (retirement) on 2 April 1912, he was given an honorary promotion General der Infanterie (Charakter). "Otto Freiherr von Hügel". The Prussian Machine. Archived from the original on October 3, 2013. Retrieved 22 December 2012.
On transfer to active reserve status (retirement) on 2 April 1912, he was given an honorary promotion General der Infanterie (Charakter). "Otto Freiherr von Hügel". The Prussian Machine. Archived from the original on October 3, 2013. Retrieved 22 December 2012.