Please answer the following question: Henry de Nassau Lord Overkirk - Henry Count of Nassau Lord of Overkirk (Dutch: Hendrik van Nassau-Ouwerkerk French: Henry de Nassau d'Auverquerque) (164018 October 1708) was a Dutch military general and second cousin of King William III of England and his Master of the Horse. 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?
A:
Office Holder