1809.7 _ Family, Ke. of Sheffield, Dike of Buckingham. 
father of Charles first Earl of Tanker- 
ville. His Grace was Lord Chamber- 
Jain to James II. created Marquis of Nor- 
manby by William and Mary, and Duke 
of Buckingham by Queen Anne, to whom ., 
he was Lord Privy Seal, and in whose 
reign he built the noble house, which now 
bears his name, in St. James’s Park: he 
was thrice married; by his first wife he 
had Lady Mary, married.to Ferdinando 
second Lord Fairfax: -his third wife was 
the Countess of Anglesey, sister of Queens 
Mary and Anne, and daughter of King 
James If. by Catherine, created Coun- 
tess of Dorchester, who afterwards mar- 
ried David Colyear, first Earl of Port- 
more; she was the only daughter of Sir 
Charles Sedley,; Bart. : 
The Duchess’s first husband, to whom 
she was. married in Henry the Seventh’s 
Chapel, in Westminster Abbey, Oct. 28, ~ 
1699, was James Annesley, third Earl 
of Anglesey, great grandson of Francis, 
Viscount Vaientia, so created by James 
TI. from whom is descended, in the fourth 
degree, by his first marriage, Arthur 
Annesley, present Earl of Mount Nor- 
ris; and in the fourth degree, by the se- 
cond marriage, Richard, the present 
Earl Annesley; her Grace’s issue, by the 
above-named Earl, was Lady Catherine 
Annesley, married, Oct. 1723, to William 
Phipps, Esq. son of Sir Constantine 
Phipps, Lord Chancellor of Ireland, in 
the reign of Queen Anne, and by him 
had Constantine, first Lord Mulgrave, 
who, by Lady Le Pell Hervey, daughter 
of John, first Earl of Bris ol, sister of 
the second, third, and fourth Earl (who 
was also Bishop of Derry), and aunt of 
Frederic William, fifth and present Earl, 
had Henry the present Lord Mulgrave. 
The Duke died Feb. 1720, and was 
buried in Westminster’ Abbey; his 
Duchess fullowed him in 1742. Their 
only issue was Edmund, fifth Earl and 
second Duke, born 1716, died 1735, 
the last male heir ofthe illustrious house 
of Shefheld ; and in consequence of his- 
death, and the previous decease of Jo- 
seph Sheffield, Esq. descended from the 
same ancestors, viz. the Earls of Mul- 
grave, and the last legitimate heir, the 
honours became extinct,” to which he- 
and his issue male would have been the 
claimants; but he left issue a daughter 
Elizabeth, who married in 1691, Stephen 
Cassan, Esq. of Maryborough, Queen’s 
County, Ireland, the representative of 
a long line of ancestors, who derived 
their descent from the noble house of 
Cassan, seated, for many centuries, in 
* 
265 
France. The present representative of this 
family is Major Cassan, brother of Stephen 
Cassan, Esq. Barrister-at-law, who died, 
1794, leaving a son, born 1789, 
- The best edition of the Duke of Buck- 
ingham’s works is that by Cooke, of. Pa- 
ternoster-row, who has annexed a Life of 
the Author; but he has made a glaring 
mistake, in stating the family to be ex- 
tinct, the contrary of which I have just, 
shewn. Messrs. Debrett, Longman, 
Kearsley, and other editors of Peerages,. 
have fallen into the same omission—Are,@ 
ticle Mulgrave,* &c. &c. * 
The Duke’s natural children were 
three, Charles, Mary, and Frances. 
Charles possessed his estates, and was 
created a Baronet in 1755, the 28th of 
Geo. If. This line is represented by Sir 
John, of Portland Place, who married, 
1784, Sophia, daughter of the Honour- 
able and Reverend William Digby, late 
Dean of Durham, brother of the first 
Earl Digby, and third son of Edward, 
fifth Lord, by Charlotte, daughter of Sir 
Stephen Fox, and sister of Stephen, first 
Earl of Iichester, and Henry, first Lord 
Halland.—2. Mary, married Arthur An- 
nesley, third Lord Altham, eldest son of 
Richard, second Lord, who was brother 
to Altham, first Lord, and third son of 
Arthur, first Earl of Anglesey, grand- 
father of the before-named James, thid 
Earl, whose widow married the first Duke 
of Buckingham: this Mary left no issue, 
and her husband was succeeded by his 
brother Richard, who also afterwards 
succeeded to the English honour of Earl 
of Anglesey, and was father of the pre- 
sent Earl of Mount Norris, so created 
on account of the deprivation of the Eng- 
lish earldom, which was done by his Ma- 
jesty, with the advice of his peers, from 
the supposed illegality of his father and 
mother’s marriage. Frances, the other 
natural daughter, married the Hone 
Olive Lambert, third son of Charles, 
third Earl of Cavan, and had issue So- 
phia, afterwards Countess of Cavan, 
having married her first cousin Richard, 
the sixth Earl, who, by another marriage, 
was father of Richard Ford Wiliam Lam- 
bert, present and seventh Earl of Cavan, 
The subject of this article rendered 
himself as conspicuous 19 aris as in the 
Cabinet,, for when war was declared 
against the Dutch, he accompanied Lord 
Ossory (1672), who represented his ser~ 
vices in such a favourable hght, as caused 
* The Baronetages also are very imperfect 
on this head==Article, Sheffield. 
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