Edmund Beaufort, 2nd Duke of Somerset
Edmund Beaufort, 2nd Duke of Somerset, KG( 22 May 1455), was an English nobleman and an important figure in the Wars of the Roses and in the Hundred Years' War.
He also succeeded in the title of 4th Earl of Somerset and was created 1st Earl of Dorset and 1st Marquess of Dorset( previously held by his father and later forfeited), and Count of Mortain.
He was known for his deadly rivalry with Richard of York, 3rd Duke of York.
Henry Beaufort, 3rd Duke of Somerset
Henry Beaufort, 3rd Duke of Somerset( 26 January 143615 May 1464) was an important Lancastrian military commander during the English Wars of the Roses.
He is sometimes numbered the 2nd Duke of Somerset, because the title was re-created for his father after his uncle died.
He also held the subsidiary titles of 5th Earl of Somerset, 2nd Marquess of Dorset and 2nd Earl of Dorset.
George West, Viscount Cantelupe
George John Frederick West, Viscount Cantelupe( 26 April 1814 – 25 June 1850), was a British politician.
Styled Viscount Cantelupe from birth, he was the eldest son of George Sackville- West, 5th Earl De La Warr, by Lady Elizabeth Sackville, daughter of John Sackville, 3rd Duke of Dorset.
He was the elder brother of Major- General Charles Sackville- West, 6th Earl De La Warr, Mortimer Sackville- West, 1st Baron Sackville, Lionel Sackville- West, 2nd Baron Sackville and Elizabeth Russell, Duchess of Bedford.
He was educated at Christ Church, Oxford.
Lord Cantelupe served in the Grenadier Guards, reaching the rank of lieutenant.
In 1837 he was returned to Parliament for Helston, a seat he held until 1840, and then represented Lewes until 1841.
He died unmarried in June 1850, aged 36, predeceasing his father.
His younger brother Charles eventually succeeded in the earldom.
John Sackville, 3rd Duke of Dorset
John Frederick Sackville, 3rd Duke of Dorset, KG (24 March 174519 July 1799) was the only son of Lord John Philip Sackville, second son of Lionel Sackville, 1st Duke of Dorset.
His mother was the former Lady Frances Leveson-Gower.
He succeeded to the dukedom in 1769 on the death of his uncle, Charles Sackville, 2nd Duke of Dorset.
He was the British Ambassador to France between 1783 and 1789 in the lead up to the French Revolution.
He is best remembered for his love of cricket.
He was both a good player and an important patron, but his interest was sharpened by gambling, cricket being a major attraction for gamblers throughout the 18th century.
His other sporting interests included billiards and tennis, he also acquired a reputation as a womaniser.
George Sackville, 4th Duke of Dorset
George John Frederick Sackville, 4th Duke of Dorset( 15 November 179314 February 1815), styled Earl of Middlesex until 1799, was a British nobleman.
The only son of John Sackville, 3rd Duke of Dorset and his wife Arabella, he was educated at Harrow and Christ Church, Oxford, receiving a MA from the latter on 30 June 1813.
He was appointed High Steward of Stratford- on- Avon, and was commissioned a captain of the local militia on 27 April 1813.
On 26 July 1813, he was made lieutenant- colonel commandant of the Sevenoaks and Bromley battalion of militia.
However, he died in February 1815, of a fall from his horse while hunting on Killiney Hill in County Dublin.
He had no children, so he was succeeded as duke by his cousin Charles Sackville- Germain.
His estate of Knole passed to his sister Elizabeth Sackville- West, Countess De La Warr.
Jacobo Fitz-James Stuart, 3rd Duke of Berwick
Jacobo Francisco Eduardo Fitz- James Stuart y Colón de Portugal, 3rd Duke of Berwick, 3rd Duke of Liria and Jérica, 9th Duke of Veragua, 9th Duke of la Vega( 28 December 1718 – Valencia, 30 September 1785) was a Spanish Jacobite.
On the death of his father, James Fitz- James Stuart, in 1738, he inherited his titles of Duke of Berwick and Duke of Liria and Xerica( he also possessed many other titles in both Spain and England.)
His mother was Spanish, and on her side he was a direct descendant of explorer Christopher Columbus.
John Sackville (died 1661)
Sir John Sackville( c. 1591–1661) was an English politician who sat in the House of Commons in 1625 and 1626.
Sackville was the son of John Sackville of Selscomb, Sussex.
He matriculated at St John's College, Oxford on 21 October 1608 aged 17.
In 1625, he was elected Member of Parliament for Rye.
He was re-elected MP for Rye in 1626.
He was knighted on 16 April 1628.
Lord John Sackville
Lord John Philip Sackville (22 June 1713 – 3 December 1765) was the second son of Lionel Sackville, 1st Duke of Dorset.
He was a keen cricketer who was closely connected with the sport in Kent.
He was Member of Parliament (MP) for Tamworth from 1734 to 1747.
Mortimer Sackville-West, 1st Baron Sackville
Mortimer Sackville- West, 1st Baron Sackville( 22 September 1820 – 1 October 1888), was a British peer and court official.
Sackville- West was the fourth son of George Sackville- West, 5th Earl De La Warr, and Elizabeth Sackville, 1st Baroness Buckhurst, younger daughter and co-heir of John Sackville, 3rd Duke of Dorset.
On the death of his kinsman Charles Sackville- Germain, 5th Duke of Dorset, in 1843, the dukedom and its subsidiary titles became extinct.
Large parts of the Sackville estates passed to the West family through Elizabeth.
The Sackville- Wests inherited parts of the estates by arrangement, notably the estate of Knole Park in Kent.
During his career Sackville- West held several high appointments within the Royal household.
In 1876 he was raised to the peerage as Baron Sackville, of Knole in the County of Kent.
The peerage was created with special remainder, failing heirs male of his body, to his younger brothers Lionel and William Edward.
He died in 1888, aged 68, and was succeeded in the barony according to the special remainder by his younger brother Lionel.
Newburgh Burroughs
Newburgh Burroughs was an eighteenth century Irish Anglican priest.
The second son of Lewis Burroughs, himself a former Archdeacon of Derry, he was educated at Trinity College, Dublin.
He was Chaplain to the John Sackville, 3rd Duke of Dorset then the incumbent at Bellaghy from 1787 to 1795.
Burroughs was the Archdeacon of Derry" The Estate of the Diocess of Derry."
Part IX. Archdeacons of Derry George Downham and William Alexander Reynell Ulster Journal of Archaeology Second Series, Vol. 4, No. 1( Oct., 1897), pp. 56–64 from 1795 until his death in 1798.
His brother was the judge and politician Sir William Burroughs, 1st Baronet

Question: When did John Sackville, 3Rd Duke Of Dorset's father die?
Answer: 3 December 1765