Thomas Charles Agar-Robartes 6th Viscount Clifden (1 January 1844 19 July 1930) styled The Honourable Thomas Agar-Robartes between 1869 and 1882 and known as The Lord Robartes from 1882 to 1899 was a British landowner and Liberal politician. 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?
A:
Office Holder