charles henry gordon-lennox, 10th duke of richmond, 10th duke of lennox, 10th duke of aubigny, 5th duke of gordon (19 september 1929 – 1 september 2017), styled lord settrington until 1935 and earl of march and kinrara between 1935 and 1989, was an english peer and landowner. he was a deputy lieutenant of west sussex from 1975 until 1990, and lord lieutenant from 1990 to 1994.