| Dukedom of Dorset | |
|---|---|
  Quarterly or and gules, a bend vair | |
| Creation date | 13 June 1720[1] |
| Created by | King George I |
| Peerage | Peerage of Great Britain |
| First holder | Lionel Sackville, 7th Earl of Dorset |
| Last holder | Charles Sackville-Germain, 5th Duke of Dorset (1767–1843) |
| Remainder to | Heirs male of the first duke's body lawfully begotten |
| Subsidiary titles | Earl of Dorset Earl of Middlesex Earl of Wigtown Lord of Cumbernauld Lord of Kirkintilloch Baron Cranfield Baron Galloway Baronet of Galloway House |
| Seat(s) | Tottenham House Galloway House |
| Former seat(s) | Knole House |
| Motto | Aut nunquam tentes, aut perfice ("Either never attempt, or accomplish")[2] |
Duke of Dorset was a title in the Peerage of Great Britain. It was created in 1720 for the politician Lionel Sackville, 7th Earl of Dorset.
- ^ The English Peerage; or, A View of the Ancient and Present State of the English Nobility. pp. 93–97. Retrieved 25 December 2016.
- ^ Debrett, John (1840). Debrett's Peerage of England, Scotland, and Ireland. p. 244. Retrieved 25 December 2016.