Given the question: Marquis Kōichi Kido (木戸 幸一 Kido Kōichi July 18 1889 – April 6 1977) served as Lord Keeper of the Privy Seal from 1940 to 1945 and was the closest advisor to Emperor Showa throughout World War II. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Office Holder