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Paternal Family Tree: Bentinck
Maternal Family Tree: Eleanor Gifford 1575
On 11th June 1734 [his father] William Bentinck 2nd Duke Portland (age 25) and [his mother] Margaret Cavendish Harley 2nd Duchess Portland (age 19) were married at St Peter aka Oxford Chapel Vere Street Marylebone [Map]. She by marriage Duchess Portland. She the daughter of [his grandfather] Edward Harley 2nd Earl of Oxford and Earl Mortimer (age 45) and [his grandmother] Henrietta Cavendish Holles Countess of Oxford and Mortimer (age 40). He the son of [his grandfather] Henry Bentinck 1st Duke Portland and [his grandmother] Elizabeth Noel Duchess Portland (age 46). They were sixth cousins.
On 14th April 1738 William Cavendish-Bentinck 3rd Duke Portland was born to [his father] William Bentinck 2nd Duke Portland (age 29) and [his mother] Margaret Cavendish Harley 2nd Duchess Portland (age 23) at Welbeck Abbey, Nottinghamshire [Map].
In 1759 [his brother-in-law] Thomas Thynne 1st Marquess of Bath (age 24) and [his sister] Elizabeth Bentinck Marchioness Bath (age 23) were married. She by marriage Viscountess Weymouth. She the daughter of [his father] William Bentinck 2nd Duke Portland (age 49) and [his mother] Margaret Cavendish Harley 2nd Duchess Portland (age 43). They were third cousins.
On 1st May 1762 [his father] William Bentinck 2nd Duke Portland (age 53) died. His son William (age 24) succeeded 3rd Duke Portland, 4th Earl of Portland.
On 28th May 1763 [his brother-in-law] George Grey 5th Earl Stamford 1st Earl Warrington (age 25) and [his sister] Henrietta Bentinck Countess Stamford and Warrington (age 26) were married. She by marriage Countess Stamford. She the daughter of [his father] William Bentinck 2nd Duke Portland and [his mother] Margaret Cavendish Harley 2nd Duchess Portland (age 48). He the son of Henry Grey 4th Earl Stamford (age 47) and Mary Booth Countess Stamford (age 59).
On 8th November 1766 William Cavendish-Bentinck 3rd Duke Portland (age 28) and Dorothy Cavendish 3rd Duchess Portland (age 16) were married. She by marriage Duchess Portland. She the daughter of William Cavendish 4th Duke Devonshire and Charlotte Elizabeth Boyle Marchioness Hartington. He the son of William Bentinck 2nd Duke Portland and Margaret Cavendish Harley 2nd Duchess Portland (age 51). They were half fourth cousins.
On 23rd June 1768 [his son] William Henry Cavendish-Scott-Bentinck 4th Duke Portland was born to William Cavendish-Bentinck 3rd Duke Portland (age 30) and [his wife] Dorothy Cavendish 3rd Duchess Portland (age 17). He married 4th August 1795 Henrietta Scott Duchess Portland and had issue.
On 7th June 1774 [his brother-in-law] William Cavendish 5th Duke Devonshire (age 26) and Georgiana Spencer Duchess Devonshire (age 17) were married in St Mary's Church, Wimbledon. It was her 17th birthday. She by marriage Duchess Devonshire. She the daughter of John Spencer 1st Earl Spencer (age 39) and Margaret Georgiana Poyntz Countess Spencer (age 37). He the son of William Cavendish 4th Duke Devonshire and Charlotte Elizabeth Boyle Marchioness Hartington. They were fourth cousins.
On 14th September 1774 [his son] William Henry Cavendish-Bentinck was born to William Cavendish-Bentinck 3rd Duke Portland (age 36) and [his wife] Dorothy Cavendish 3rd Duchess Portland (age 24). He married 19th February 1803 Mary Acheson, daughter of Arthur Acheson 1st Earl Gosford and Millicent Pole Countess Gosford.
On 3rd October 1775 [his daughter] Charlotte Cavendish-Bentinck was born to William Cavendish-Bentinck 3rd Duke Portland (age 37) and [his wife] Dorothy Cavendish 3rd Duchess Portland (age 25). She married before 26th August 1832 her second cousin twice removed Charles Greville and had issue.
On 13th March 1779 [his daughter] Mary Cavendish-Bentinck was born to William Cavendish-Bentinck 3rd Duke Portland (age 40) and [his wife] Dorothy Cavendish 3rd Duchess Portland (age 28).
On 20th May 1780 [his son] Charles Cavendish-Bentinck was born to William Cavendish-Bentinck 3rd Duke Portland (age 42) and [his wife] Dorothy Cavendish 3rd Duchess Portland (age 29). He married (1) 21st September 1808 Georgiana Augusta Frederica Seymour (2) 16th July 1816 Anne Wellesley Lady Abdy, daughter of Richard Wellesley 1st Marquess Wellesley and Hyacinthe Gabrielle Roland Marchioness Wellesley, and had issue.
On 2nd November 1781 [his son] Frederick Cavendish-Bentinck was born to William Cavendish-Bentinck 3rd Duke Portland (age 43) and [his wife] Dorothy Cavendish 3rd Duchess Portland (age 31). He married 16th September 1820 Mary Lowther, daughter of William Lowther 1st Earl Lonsdale and Augusta Fane Countess Lonsdale, and had issue.
On 27th February 1782 [his brother-in-law] George Augustus Henry Cavendish 1st Earl Burlington (age 27) and Elizabeth Compton Countess Burlington (age 21) were married at London. She by marriage Countess Burlington. She the daughter of Charles Compton 7th Earl of Northampton and Anne Somerset Countess Northampton. He the son of William Cavendish 4th Duke Devonshire and Charlotte Elizabeth Boyle Marchioness Hartington. They were fourth cousins.
On 17th July 1785 [his mother] Margaret Cavendish Harley 2nd Duchess Portland (age 70) died.
In 1794 King George III of Great Britain and Ireland (age 55) created new Garter Knights as follows:
617th Henry Scott 3rd Duke Buccleuch (age 47),
618th William Frederick Hanover 2nd Duke Gloucester and Edinburgh (age 17),
619th William Cavendish-Bentinck 3rd Duke Portland (age 55).
All About History Books
The Deeds of King Henry V, or in Latin Henrici Quinti, Angliæ Regis, Gesta, is a first-hand account of the Agincourt Campaign, and subsequent events to his death in 1422. The author of the first part was a Chaplain in King Henry's retinue who was present from King Henry's departure at Southampton in 1415, at the siege of Harfleur, the battle of Agincourt, and the celebrations on King Henry's return to London. The second part, by another writer, relates the events that took place including the negotiations at Troye, Henry's marriage and his death in 1422.
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On 3rd June 1794 [his wife] Dorothy Cavendish 3rd Duchess Portland (age 43) died. She was buried at St Marylebone Church.
On 4th August 1795 [his son] William Henry Cavendish-Scott-Bentinck 4th Duke Portland (age 27) and [his daughter-in-law] Henrietta Scott Duchess Portland (age 21) were married. She by marriage Duchess Portland. He the son of William Cavendish-Bentinck 3rd Duke Portland (age 57) and [his former wife] Dorothy Cavendish 3rd Duchess Portland.
In 1796 [his brother-in-law] George Grey 5th Earl Stamford 1st Earl Warrington (age 58) was created 1st Earl Warrington, 1st Baron Delamer. [his sister] Henrietta Bentinck Countess Stamford and Warrington (age 58) by marriage Countess Warrington.
On 19th February 1803 [his son] William Henry Cavendish-Bentinck (age 28) and [his daughter-in-law] Mary Acheson (age 16) were married. She the daughter of Arthur Acheson 1st Earl Gosford (age 58) and Millicent Pole Countess Gosford (age 53). He the son of William Cavendish-Bentinck 3rd Duke Portland (age 64) and [his former wife] Dorothy Cavendish 3rd Duchess Portland.
On 31st March 1807 William Cavendish-Bentinck 3rd Duke Portland (age 68) was appointed Prime Minister.
On 21st September 1808 [his son] Charles Cavendish-Bentinck (age 28) and [his daughter-in-law] Georgiana Augusta Frederica Seymour (age 26) were married. She the daughter of King George IV of Great Britain and Ireland (age 46) and Grace Elliott. He the son of William Cavendish-Bentinck 3rd Duke Portland (age 70) and [his former wife] Dorothy Cavendish 3rd Duchess Portland.
On 30th October 1809 William Cavendish-Bentinck 3rd Duke Portland (age 71) died. His son William (age 41) succeeded 4th Duke Portland, 5th Earl of Portland.
1814. Benjamin West (age 75). Portrait of William Cavendish-Bentinck 3rd Duke Portland.
Kings Wessex: Great x 21 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 17 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 23 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 18 Grand Son of Maredudd ap Bleddyn King Powys
Kings England: Great x 9 Grand Son of King Edward IV of England
Kings Scotland: Great x 20 Grand Son of King Duncan I of Scotland
Kings Franks: Great x 17 Grand Son of Louis VII King Franks
Kings France: Great x 21 Grand Son of Robert "Pious" II King France
Kings Duke Aquitaine: Great x 25 Grand Son of Ranulf I Duke Aquitaine
Great x 1 Grandfather: William Bentinck 1st Earl of Portland
GrandFather: Henry Bentinck 1st Duke Portland 11 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: George Villiers of Brokesby
Great x 3 Grandfather: Edward Villiers
Great x 4 Grandmother: Audrey Saunders
Great x 2 Grandfather: Edward Villiers 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John St John 7 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Barbara St John 8 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Lucy Hungerford 11 x Great Grand Daughter of King Henry III of England
Great x 1 Grandmother: Anne Villiers Countess Portland 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Thomas Howard 1st Earl Suffolk 7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Theophilus Howard 2nd Earl Suffolk 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Catherine Knyvet Countess Suffolk 9 x Great Grand Daughter of King Edward I of England
Great x 2 Grandmother: Frances Howard 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: George Home 1st Earl Dunbar
Great x 3 Grandmother: Elizabeth Home Countess Suffolk 15 x Great Grand Daughter of King John of England
Great x 4 Grandmother: Elizabeth Gordon Countess Dunbar 14 x Great Grand Daughter of King John of England
Father: William Bentinck 2nd Duke Portland 11 x Great Grand Son of King Henry IV of England
Great x 4 Grandfather: Edward Noel 2nd Viscount Campden
Great x 3 Grandfather: Baptist Noel 3rd Viscount Campden
Great x 4 Grandmother: Juliana Hicks Viscountess Campden
Great x 2 Grandfather: Edward Noel 1st Earl Gainsborough
Great x 4 Grandfather: Thomas Wotton 2nd Baron Wotton
Great x 3 Grandmother: Hester Wotton Viscountess Campden
Great x 1 Grandfather: Wriothesley Baptist Noel 2nd Earl Gainsborough 9 x Great Grand Son of King Henry IV of England
Great x 4 Grandfather: Henry Wriothesley 3rd Earl of Southampton 7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Thomas Wriothesley 4th Earl of Southampton 2nd Earl Chichester 7 x Great Grand Son of King Henry IV of England
Great x 4 Grandmother: Elizabeth Vernon Countess Southampton 6 x Great Grand Daughter of King Henry IV of England
Great x 2 Grandmother: Elizabeth Wriothesley Countess Gainsborough 8 x Great Grand Daughter of King Henry IV of England
Great x 4 Grandfather: Francis Leigh 1st Earl Chichester
Great x 3 Grandmother: Elizabeth Leigh Countess Southampton 13 x Great Grand Daughter of King Edward I of England
Great x 4 Grandmother: Audrey Boteler Countess Chichester 12 x Great Grand Daughter of King Edward I of England
GrandMother: Elizabeth Noel Duchess Portland 10 x Great Grand Daughter of King Henry IV of England
Great x 4 Grandfather: Fulk Greville 7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Robert Greville 2nd Baron Brooke 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Mary Copley
Great x 2 Grandfather: Fulke Greville 5th Baron Brooke 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Francis Russell 4th Earl Bedford 10 x Great Grand Son of King John of England
Great x 3 Grandmother: Catherine Russell Baroness Brooke 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Catherine Brydges Countess Bedford 8 x Great Grand Daughter of King Edward III of England
Great x 1 Grandmother: Catherine Greville Duchess Buckingham and Normandby 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Samuel Dashwood
Great x 3 Grandfather: Francis Dashwood
Great x 2 Grandmother: Sarah Dashwood Baroness Brooke
Great x 4 Grandfather: Richard Sleigh
Great x 3 Grandmother: Alice Sleigh
William Cavendish-Bentinck 3rd Duke Portland 9 x Great Grand Son of King Edward IV of England
Great x 4 Grandfather: Thomas Harley
Great x 3 Grandfather: Robert Harley 10 x Great Grand Son of King John of England
Great x 4 Grandmother: Margaret Corbet 9 x Great Grand Daughter of King John of England
Great x 2 Grandfather: Edward Harley 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Edward Conway 1st Viscount Conway 7 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Brilliana Conway 8 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Robert Harley 1st Earl of Oxford and Earl Mortimer 10 x Great Grand Son of King Edward III of England
GrandFather: Edward Harley 2nd Earl of Oxford and Earl Mortimer 11 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Richard Foley
Great x 3 Grandfather: Thomas Foley
Great x 4 Grandmother: Alice Brindley
Great x 2 Grandfather: Thomas Foley
Great x 1 Grandmother: Elizabeth Foley Countess of Oxford and Mortimer
Mother: Margaret Cavendish Harley 2nd Duchess Portland 8 x Great Grand Daughter of King Edward IV of England
Great x 4 Grandfather: John Holles 1st Earl de Clare 7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: John Holles 2nd Earl de Clare 7 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Anne Stanhope Countess de Clare 6 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Gilbert Holles 3rd Earl de Clare 8 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Horace de Vere 1st Baron Vere 7 x Great Grand Son of King Edward I of England
Great x 3 Grandmother: Elizabeth Vere Countess Clare 8 x Great Grand Daughter of King Edward I of England
Great x 4 Grandmother: Mary Tracy Baroness Spencer Tilbury
Great x 1 Grandfather: John Holles 1st Duke Newcastle upon Tyne 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Robert Pierrepont 1st Earl Kingston 9 x Great Grand Son of King Edward I of England
Great x 3 Grandfather: William Pierrepont of Thoresby 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Gertrude Talbot Baroness Pierrepont Holme Pierrepoint 7 x Great Grand Daughter of King Edward III of England
Great x 2 Grandmother: Grace Pierrepont Countess de Clare 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Thomas Harries aka Harris 1st Baronet
Great x 3 Grandmother: Elizabeth Harries aka Harris
Great x 4 Grandmother: Eleanor Gifford
GrandMother: Henrietta Cavendish Holles Countess of Oxford and Mortimer 7 x Great Grand Daughter of King Edward IV of England
Great x 4 Grandfather: Charles Cavendish 8 x Great Grand Son of King Edward I of England
Great x 3 Grandfather: William Cavendish 1st Duke Newcastle upon Tyne 4 x Great Grand Son of King Edward IV of England
Great x 4 Grandmother: Catherine Ogle 8th Baroness Ogle 3 x Great Grand Daughter of King Edward IV of England
Great x 2 Grandfather: Henry Cavendish 2nd Duke Newcastle upon Tyne 5 x Great Grand Son of King Edward IV of England
Great x 4 Grandfather: William Bassett 11 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Elizabeth Bassett Countess Newcastle upon Tyne 12 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Margaret Cavendish Duchess Newcastle upon Tyne 6 x Great Grand Daughter of King Edward IV of England
Great x 4 Grandfather: Robert Pierrepont 1st Earl Kingston 9 x Great Grand Son of King Edward I of England
Great x 3 Grandfather: William Pierrepont of Thoresby 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Gertrude Talbot Baroness Pierrepont Holme Pierrepoint 7 x Great Grand Daughter of King Edward III of England
Great x 2 Grandmother: Frances Pierrepont Duchess Newcastle upon Tyne 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Thomas Harries aka Harris 1st Baronet
Great x 3 Grandmother: Elizabeth Harries aka Harris
Great x 4 Grandmother: Eleanor Gifford