| Title | Name | Address(es) | Estates |
|---|
| Marquis | Salisbury,Marq.of, | 20 | Arlington-street | | | Hatfield,Herts..Aldborough,Suffolk |
| Marquis | Camden,Right Hon.Marquis of, | 22 | Arlington-street,Piccadilly | | | Wilderness, near 7 Oaks....Bayham abbey,Sussex |
| Marquis | Lansdowne,Marquis of, | | Berkeley-square | | | Bowood-park,Wilts...Easthamstead park,Berks |
| Marquis | Headfort,Marquis of, | 6 | Bryanston-square | | | Headfort-house,Kelso,Ireland |
| Marquis | Stafford,Marquis of, | 1 | Cleveland-square | | | Trentham-hall,Staffordshire..Dunrobin-castle, Sutherlandshire..Richmond,Surrey..Lilles-hall, Shropshire |
| Marquis | Thomond,Marquis of, | 7 | Clifford-street | | | Rostelling Castle,county Cork,Ireland |
| Marquis | Douglas,Marquis, | 10 | Grosvenor-place | | | Hamiton-palace,N. B |
| Marquis | Bath,Marquis of, | 6 | Grosvenor-square | | | Longleat, near Warminster, Wilts |
| Marquis | Winchester,Marquis of, | 14 | Grosvenor-square | | | Newport house,nearAndover,Hants |
| Marquis | Conyngham,Marquis, | 5 | Hamilton-place | | | Mount Charles,Donegall,Ireland |
| Marquis | Ormonde,Marquisof, | 4 | Hanover-square | | | Oxbrough-hall,Norfolk |
| Marquis | Hertford,Marq.of, | 20 | Manchester-square | | | Ragley,Warwicksh..Sudburn-hall Orford,Suffolk |
| Marquis | Waterford,Marquis of, | 5 | Mansfield-street | | | Curraghmore, nearWaterford, Ireland |
| Marquis | Anglesey,Marquisof, | 1 | Old-Burlington-street | | | Beau Desert,Staffordshire.... Plasnewydd, Anglesea.....Stalbridge, Dorsetshire |
| Marquis | Buckingham,Marquis, | 95 | Pall-mall | | | Stowe,Bucks.-Wotton, Bucks.... Avington,Hants-..Gosfield,Essex.... Southgate, Middlesex-.-Buckingham Cottage,Ryde,Isle of Wight |
| Marquis | Cholmondeley,Marquis, | | Piccadilly | | | Cholmondeley Castle, Cheshire... Houghton, Norfolk |
| Marquis | D'Osmond,Marquis,French Ambassador | 34 | Portland-place | | | |
| Marquis | Blandford,Marquis, | 2 | Queen-street,Mayfair | | | |
| Marquis | De Chabannes,Marquis, | 1 | Russell-place | | | |
| Marquis | Abercorn,Marquis of | 19 | Stratford-place | | | Priory,Staumore,Middlesex |
