Biography of William Cavendish 3rd Duke Devonshire 1698-1755

Paternal Family Tree: Cavendish

Maternal Family Tree: Rachel Massue Countess Southampton 1603-1640

On 21 Jun 1688 [his father] William Cavendish 2nd Duke Devonshire (age 16) and [his mother] Rachel Russell Duchess Devonshire (age 14) were married. He the son of William Cavendish 1st Duke Devonshire (age 48) and Mary Butler Duchess Devonshire (age 42). They were half third cousins.

On 26 Sep 1698 William Cavendish 3rd Duke Devonshire was born to William Cavendish 2nd Duke Devonshire (age 26) and Rachel Russell Duchess Devonshire (age 24).

On 18 Aug 1707 [his grandfather] William Cavendish 1st Duke Devonshire (age 67) died. His son [his father] William Cavendish 2nd Duke Devonshire (age 35) succeeded 2nd Duke Devonshire, 5th Earl Devonshire, 5th Baron Cavendish Hardwick. [his mother] Rachel Russell Duchess Devonshire (age 33) by marriage Duchess Devonshire.

Around 1710 Godfrey Kneller (age 63). Portrait of William Cavendish 3rd Duke Devonshire (age 11).

On 27 Mar 1718 William Cavendish 3rd Duke Devonshire (age 19) and Catherine Hoskyns Duchess Devonshire (age 19) were married. He the son of William Cavendish 2nd Duke Devonshire (age 46) and Rachel Russell Duchess Devonshire (age 44).

In May 1719 [his daughter] Caroline Cavendish Countess Bessborough was born to William Cavendish 3rd Duke Devonshire (age 20) and [his wife] Catherine Hoskyns Duchess Devonshire (age 20).

On 08 May 1720 [his son] William Cavendish 4th Duke Devonshire was born to William Cavendish 3rd Duke Devonshire (age 21) and [his wife] Catherine Hoskyns Duchess Devonshire (age 21).

On 28 Dec 1725 [his mother] Rachel Russell Duchess Devonshire (age 51) died.

In or before 1726 [his daughter] Elizabeth Cavendish was born to William Cavendish 3rd Duke Devonshire (age 27) and [his wife] Catherine Hoskyns Duchess Devonshire (age 27).

On 07 Jun 1727 [his daughter] Rachel Cavendish was born to William Cavendish 3rd Duke Devonshire (age 28) and [his wife] Catherine Hoskyns Duchess Devonshire (age 28).

Around 1729 [his son] Frederick Cavendish was born to William Cavendish 3rd Duke Devonshire (age 30) and [his wife] Catherine Hoskyns Duchess Devonshire (age 30).

On 04 Jun 1729 [his father] William Cavendish 2nd Duke Devonshire (age 57) died. His son William Cavendish 3rd Duke Devonshire (age 30) succeeded 3rd Duke Devonshire, 6th Earl Devonshire, 6th Baron Cavendish Hardwick. [his wife] Catherine Hoskyns Duchess Devonshire (age 30) by marriage Duchess Devonshire.

In 1730 Robert Wilmot 1st Baronet (age 22) became Private Secretary to William Cavendish 3rd Duke Devonshire (age 31).

In 1733 William Cavendish 3rd Duke Devonshire (age 34) was appointed 550th Knight of the Garter by King George II of Great Britain and Ireland (age 49).

Around 1734 [his son] John Cavendish was born to William Cavendish 3rd Duke Devonshire (age 35) and [his wife] Catherine Hoskyns Duchess Devonshire (age 35).

On 05 Jul 1739 [his son-in-law] William Ponsonby 2nd Earl Bessborough (age 35) and [his daughter] Caroline Cavendish Countess Bessborough (age 20) were married. His younger brother [his future son-in-law] John Ponsonby (age 26) would marry her younger sister [his daughter] Elizabeth Cavendish (age 13) four years later. She the daughter of William Cavendish 3rd Duke Devonshire (age 40) and Catherine Hoskyns Duchess Devonshire (age 40). He the son of Brabazon Ponsonby 1st Earl Bessborough (age 60) and Sarah Margetson.

In 1743 [his son-in-law] John Ponsonby (age 29) and [his daughter] Elizabeth Cavendish (age 17) were married. His elder brother [his son-in-law] William Ponsonby 2nd Earl Bessborough (age 39) had married her elder sister [his daughter] Caroline Cavendish Countess Bessborough (age 23) four years before. She the daughter of William Cavendish 3rd Duke Devonshire (age 44) and Catherine Hoskyns Duchess Devonshire (age 44). He the son of Brabazon Ponsonby 1st Earl Bessborough (age 64) and Sarah Margetson.

Before 1748 [his son] William Cavendish 4th Duke Devonshire (age 27) and [his daughter-in-law] Charlotte Elizabeth Boyle Marchioness Hartington (age 16) were married. She the daughter of Richard Boyle 3rd Earl Burlington (age 53) and Dorothy Savile Countess Burlington (age 48). He the son of William Cavendish 3rd Duke Devonshire (age 49) and Catherine Hoskyns Duchess Devonshire (age 49).

On 12 May 1748 [his son-in-law] Horatio Walpole 1st Earl Orford (age 24) and [his daughter] Rachel Cavendish (age 20) were married. She the daughter of William Cavendish 3rd Duke Devonshire (age 49) and Catherine Hoskyns Duchess Devonshire (age 49).

Letters of Horace Walpole. 23 Jun 1752. Arlington Street. To The Hon H S Conway (age 31).

By a letter that I received from my Lady Ailesbury (age 31) two days ago, I flatter myself I shall not have occasion to write to you any more; yet I shall certainly see you with less pleasure than ever, as our meeting is to be attended with a resignation of my little charge (age 3).316 She is vastly well, and I think you will find her grown fat. I am husband enough to mind her beauty no longer, and perhaps you will say husband enough too, in pretending that my love is converted into friendship; but I shall tell you some stories at Park-place of her understanding that will please you, I trust, as much as they have done me.

My Lady Ailesbury (age 31) says I must send her news, and the whole history of Mr. Seymour (age 22) and Lady Di. Egerton (age 21), and their quarrel, and all that is said on both sides. I can easily tell her all that is said on one side, Mr. Seymour's, who says, the only answer he has ever been able to get from the Duchess or Mr. Lyttelton was, that Di. has her caprices. The reasons she gives, and gave him, were, the badness of his temper and imperiousness of his letters; that he scolded her for the overfondness of her epistles, and was even so unsentimental as to talk of desiring to make her happy, instead of being made so by her. He is gone abroad, in despair, and with an additional circumstance, which would be very uncomfortable to any thing but a true lover; his father refuses to resettle the estate on him, the entail of which was cut off by mutual consent, to make way for the settlements on the marriage.

The Speaker told me t'other day, that he had received a letter from Lord Hyde, which confirms what Mr. Churchill writes me, the distress and poverty of France and the greatness of their divisions. Yet the King's expenses are incredible; Madame de Pompadour (age 30) is continually busied in finding out new journeys and diversions to keep him from falling into the hands of the clergy. The last party of pleasure she made for him, was a stag-hunting; the stag was a man in a skin and horns, worried by twelve men dressed like bloodhounds! I have read of Basilowitz, a Czar of Muscovy, who improved on such a hunt, and had a man in a bearskin worried by real dogs; a more kingly entertainment!

I shall make out a sad Journal of other news; yet I will be like any gazette, and scrape together all the births, deaths, and marriages in the parish. [his son] Lady Hartington (age 32) and [his daughter] Lady Rachel Walpole (age 25) are brought to bed of sons; Lord Burlington (age 58) and Lord Gower (age 57) have had new attacks of palsies: Lord Falkland (age 45) is to marry the Southwark Lady Suffolk;317 and Mr. Watson (age 23), Miss Grace Pelham (age 17). Lady Coventry (age 19) has miscarried of one or two children, and is going on with one or two more, and is gone to France to-day. Lady Townshend (age 44) and Lady Caroline Petersham (age 30) have had their anniversary quarrel, and the Duchess of Devonshire (age 53) has had her secular assembly, which she keeps once in fifty years: she was more delightfully vulgar at it than you can imagine; complained of the wet night, and how the men would dirty the rooms with their shoes; called out at supper to the Duke (age 53), "Good God! my lord, don't cut the ham, nobody will eat any!" and relating her private menage to Mr. Obnir, she said, "When there's only my lord and I, besides a pudding we have always a dish of Yeast!" I am ashamed to send you such nonsense, or to tell you how the good women at Hampton Court are scandalized at Princess Emily's (age 41) coming to chapel last Sunday in riding-clothes with a dog under her arm; but I am bid to send news: what can we do -,it such a dead time of year? I must conclude, as my Lady Gower did very well t'other day in a letter into the country, "Since the two Misses318 were hanged, and the two Misses319 were married, there is nothing at all talked of." Adieu! My best compliments and my wife's to your two ladies.

Note 315. Now first published.

Note 316. Their daughter, Ann Seymour Conway (age 3).

Note 317. Sarah, Duchess-dowager of Suffolk, daughter of Thomas Unwen, Esq. of Southwark.-E.

Note 318. Miss Blandy and Miss Jefferies.

Note 319. The Gunnings. [Maria Gunning Countess Coventry (age 19) and Elizabeth Gunning Duchess Hamilton and Argyll (age 18)]

On 05 Dec 1755 William Cavendish 3rd Duke Devonshire (age 57) died. His son [his son] William Cavendish 4th Duke Devonshire (age 35) succeeded 4th Duke Devonshire, 7th Earl Devonshire, 7th Baron Cavendish Hardwick.

On 08 May 1777 [his former wife] Catherine Hoskyns Duchess Devonshire (age 78) died at Chatsworth House [Map].

[his son] George Augustus Cavendish was born to William Cavendish 3rd Duke Devonshire and Catherine Hoskyns Duchess Devonshire.

Royal Ancestors of William Cavendish 3rd Duke Devonshire 1698-1755

Kings Wessex: Great x 20 Grand Son of King Edmund "Ironside" I of England

Kings Gwynedd: Great x 16 Grand Son of Owain "Great" King Gwynedd

Kings Seisyllwg: Great x 21 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth

Kings Powys: Great x 17 Grand Son of Maredudd ap Bleddyn King Powys

Kings England: Great x 10 Grand Son of Henry IV King England

Kings Scotland: Great x 14 Grand Son of Robert "The Bruce" I King Scotland

Kings Franks: Great x 17 Grand Son of Louis VII King Franks

Kings France: Great x 13 Grand Son of Philip "The Fair" IV King France

Royal Descendants of William Cavendish 3rd Duke Devonshire 1698-1755

Queen Elizabeth II of the United Kingdom x 1

Diana Spencer Princess Wales x 1

Ancestors of William Cavendish 3rd Duke Devonshire 1698-1755

Great x 4 Grandfather: William Cavendish 7 x Great Grand Son of King Edward "Longshanks" I of England

Great x 3 Grandfather: William Cavendish 1st Earl Devonshire 8 x Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandmother: Bess of Hardwick Countess Shrewsbury and Waterford 8 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 2 Grandfather: William Cavendish 2nd Earl Devonshire 9 x Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandfather: Henry Keighley

Great x 3 Grandmother: Anne Keighley

Great x 1 Grandfather: William Cavendish 3rd Earl Devonshire 10 x Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandfather: Edward Bruce

Great x 3 Grandfather: Edward Bruce 1st Lord Kinloss

Great x 2 Grandmother: Christian Bruce Countess Devonshire

GrandFather: William Cavendish 1st Duke Devonshire 9 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: William Cecil 1st Baron Burghley

Great x 3 Grandfather: Robert Cecil 1st Earl Salisbury 12 x Great Grand Son of King John "Lackland" of England

Great x 4 Grandmother: Mildred Cooke Baroness Burghley 11 x Great Grand Daughter of King John "Lackland" of England

Great x 2 Grandfather: William Cecil 2nd Earl Salisbury 7 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: William Brooke 10th Baron Cobham 5 x Great Grand Son of King Edward III of England

Great x 3 Grandmother: Elizabeth Brooke 6 x Great Grand Daughter of King Edward III of England

Great x 4 Grandmother: Frances Newton Baroness Cobham

Great x 1 Grandmother: Elizabeth Cecil Countess Devonshire 8 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Thomas Howard 4th Duke of Norfolk 7 x Great Grand Son of King Edward III of England

Great x 3 Grandfather: Thomas Howard 1st Earl Suffolk 7 x Great Grand Son of King Edward III of England

Great x 4 Grandmother: Margaret Audley Duchess Norfolk 6 x Great Grand Daughter of King Edward III of England

Great x 2 Grandmother: Catherine Howard Countess Salisbury 7 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Thomas Dacre 4th Baron Dacre Gilsland 8th Baron Greystoke 5 x Great Grand Son of King Edward III of England

Great x 3 Grandmother: Mary Dacre 6 x Great Grand Daughter of King Edward III of England

Great x 4 Grandmother: Elizabeth Leybourne Duchess Norfolk

Father: William Cavendish 2nd Duke Devonshire 10 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: Edward Butler 8 x Great Grand Son of King Edward "Longshanks" I of England

Great x 3 Grandfather: Walter Butler 11th Earl Ormonde 4th Earl Ossory 9 x Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandmother: Mary Burke 10 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 2 Grandfather: Thomas Butler Viscount Thurles 10 x Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandfather: Edmund Butler 2nd Viscount Mountgarret 8 x Great Grand Son of King Edward "Longshanks" I of England

Great x 3 Grandmother: Helen Butler Countess Ormonde and Ossory 9 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 4 Grandmother: Grizzel Fitzpatrick Viscountess Mountgarret

Great x 1 Grandfather: James Butler 1st Duke Ormonde 9 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: Nicholas Poyntz 6 x Great Grand Son of King Edward III of England

Great x 3 Grandfather: John Poyntz 7 x Great Grand Son of King Edward III of England

Great x 4 Grandmother: Anne Verney 13 x Great Grand Daughter of King Henry I "Beauclerc" England

Great x 2 Grandmother: Elizabeth Poyntz 8 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Alexander Syndeham 10 x Great Grand Son of King John "Lackland" of England

Great x 3 Grandmother: Elizabeth Sydenham 11 x Great Grand Daughter of King John "Lackland" of England

GrandMother: Mary Butler Duchess Devonshire 10 x Great Grand Daughter of King Edward III of England

Great x 3 Grandfather: Richard Preston of Whitehill in Midlothian

Great x 2 Grandfather: Richard Preston 1st Earl Desmond

Great x 1 Grandmother: Elizabeth Preston Duchess Ormonde 9 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: James "Lame" Butler 9th Earl Ormonde 2nd Earl Ossory 7 x Great Grand Son of King Edward "Longshanks" I of England

Great x 3 Grandfather: Thomas "Black Tom" Butler 10th Earl Ormonde 3rd Earl Ossory 8 x Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandmother: Joan Fitzgerald Countess Ormonde and Ossory 7 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 2 Grandmother: Elizabeth Butler 8 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: John Sheffield 2nd Baron Sheffield 6 x Great Grand Son of King Edward III of England

Great x 3 Grandmother: Elizabeth Sheffield Countess Ormonde and Ossory 7 x Great Grand Daughter of King Edward III of England

Great x 4 Grandmother: Douglas Howard Baroness Sheffield 7 x Great Grand Daughter of King Edward "Longshanks" I of England

William Cavendish 3rd Duke Devonshire 10 x Great Grand Son of Henry IV King England

Great x 4 Grandfather: Francis Russell 2nd Earl Bedford

Great x 3 Grandfather: William Russell 1st Baron Russell 9 x Great Grand Son of King John "Lackland" of England

Great x 4 Grandmother: Margaret St John Countess Bedford 8 x Great Grand Daughter of King John "Lackland" of England

Great x 2 Grandfather: Francis Russell 4th Earl Bedford 10 x Great Grand Son of King John "Lackland" of England

Great x 3 Grandmother: Elizabeth Long Baroness Russel Thornhaugh

Great x 1 Grandfather: William Russell 1st Duke Bedford 9 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: Edmund Brydges 2nd Baron Chandos 6 x Great Grand Son of King Edward III of England

Great x 3 Grandfather: Giles Brydges 3rd Baron Chandos 7 x Great Grand Son of King Edward III of England

Great x 4 Grandmother: Dorothy Braye Baroness Chandos and Knollys 12 x Great Grand Daughter of King Henry I "Beauclerc" England

Great x 2 Grandmother: Catherine Brydges Countess Bedford 8 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Edward Clinton 1st Earl Lincoln 8 x Great Grand Son of King Edward "Longshanks" I of England

Great x 3 Grandmother: Anne Clinton 9 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 4 Grandmother: Ursula Stourton Baroness Clinton 9 x Great Grand Daughter of King John "Lackland" of England

GrandFather: William Russell 10 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: John Kerr 10th of Ferniehirst

Great x 3 Grandfather: Thomas Kerr of Ferniehirst 12 x Great Grand Son of King John "Lackland" of England

Great x 4 Grandmother: Catherine Ker 11 x Great Grand Daughter of King John "Lackland" of England

Great x 2 Grandfather: Robert Carr 1st Earl Somerset 13 x Great Grand Son of King John "Lackland" of England

Great x 1 Grandmother: Anne Carr Countess of Bedford 9 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Thomas Howard 4th Duke of Norfolk 7 x Great Grand Son of King Edward III of England

Great x 3 Grandfather: Thomas Howard 1st Earl Suffolk 7 x Great Grand Son of King Edward III of England

Great x 4 Grandmother: Margaret Audley Duchess Norfolk 6 x Great Grand Daughter of King Edward III of England

Great x 2 Grandmother: Frances Howard Countess Essex and Somerset 8 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Henry Knyvet 8 x Great Grand Son of King Edward "Longshanks" I of England

Great x 3 Grandmother: Catherine Knyvet Countess Suffolk 9 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 4 Grandmother: Elizabeth Stumpe

Mother: Rachel Russell Duchess Devonshire 9 x Great Grand Daughter of Henry IV King England

Great x 2 Grandfather: Henry Wriothesley 3rd Earl of Southampton 7 x Great Grand Son of King Edward III of England

Great x 4 Grandfather: Anthony Browne 1st Viscount Montagu 5 x Great Grand Son of King Edward III of England

Great x 3 Grandmother: Mary Browne Countess Southampton 6 x Great Grand Daughter of King Edward III of England

Great x 4 Grandmother: Jane Radclyffe 6 x Great Grand Daughter of King Edward III of England

Great x 1 Grandfather: Thomas Wriothesley 4th Earl of Southampton 2nd Earl Chichester 7 x Great Grand Son of Henry IV King England

Great x 4 Grandfather: George Vernon 4 x Great Grand Son of Henry IV King England

Great x 3 Grandfather: John Vernon 5 x Great Grand Son of Henry IV King England

Great x 2 Grandmother: Elizabeth Vernon Countess Southampton 6 x Great Grand Daughter of Henry IV King England

GrandMother: Rachel Wriothesley 8 x Great Grand Daughter of Henry IV King England

Great x 2 Grandfather: Daniel de Massue Seigneur de Rouvigny

Great x 1 Grandmother: Rachel Massue Countess Southampton