Given the question: Odo Russell 1st Baron Ampthill -  Odo William Leopold Russell 1st Baron Ampthill GCB GCMG PC (20 February 1829 – 25 August 1884) styled Lord Odo Russell between 1872 and 1881 was a British diplomat and the first British Ambassador to the German Empire. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
The answer is:
Office Holder