Arabella Diana Cope
| Arabella Diana Cope | |
|---|---|
| Duchess of Dorset | |
Arabella in 1803 | |
| Reign | 4 January 1790 – 19 July 1799 |
| Predecessor | Elizabeth Colyear (1720-1765) |
| Successor | Title extinct (1843) |
| Born | 1769 England |
| Died | 1 August 1829 (aged 60) England |
| Burial | St Michael and All Saints Churchyard, Withyham, East Sussex, England |
| Wives | |
| Issue | Mary Sackville George Sackville, 4th Duke of Dorset Elizabeth Sackville-West, Baroness Buckhurst |
| House | Cope (by birth) Sackville (by first marriage) Whitworth (by second marriage) |
| Father | Sir Charles Cope |
| Mother | Catherine Bishopp |
Arabella Diana Cope (1769 – 1 August 1829) was a British noblewoman. She was Duchess of Dorset by her first marriage to John Sackville, 3rd Duke of Dorset, and subsequently Countess of Whitworth by her second marriage to Charles Whitworth, 1st Earl Whitworth.