Biography of George Spencer-Churchill 6th Duke Marlborough 1793-1857
Paternal Family Tree: Spencer
Maternal Family Tree: Elizabeth Spencer Lady Dashwood 1716-1798
On 15 Sep 1791 [his father] George Spencer-Churchill 5th Duke Marlborough (age 25) and [his mother] Susan Stewart Duchess Marlborough (age 24) were married. She the daughter of John Stewart 7th Earl Galloway (age 55) and Anne Dashwood Countess Galloway (age 48). He the son of George Spencer 4th Duke Marlborough (age 52) and Caroline Russell Duchess Marlborough (age 48).
On 27 Dec 1793 George Spencer-Churchill 6th Duke Marlborough was born to George Spencer-Churchill 5th Duke Marlborough (age 27) and Susan Stewart Duchess Marlborough (age 26).
On 29 Jan 1817 [his grandfather] George Spencer 4th Duke Marlborough (age 78) died. His son [his father] George Spencer-Churchill 5th Duke Marlborough (age 50) succeeded 5th Duke Marlborough, 5th Marquess of Blandford, 5th Earl of Marlborough, 5th Baron Churchill of Sandridge in Hertfordshire, 7th Earl of Sunderland, 9th Baron Spencer Wormleighton. [his mother] Susan Stewart Duchess Marlborough (age 49) by marriage Duchess Marlborough.
In 1818 [his daughter] Susan Spencer-Churchill was born to George Spencer-Churchill 6th Duke Marlborough (age 24).
On 13 Jan 1819 George Spencer-Churchill 6th Duke Marlborough (age 25) and Jane Stewart Duchess Marlborough (age 21) were married. She the daughter of George Stewart 8th Earl Galloway (age 50) and Jane Paget Countess Galloway (age 44). He the son of George Spencer-Churchill 5th Duke Marlborough (age 52) and Susan Stewart Duchess Marlborough (age 51). They were first cousins.
Around 1820 [his daughter] Louisa Spencer-Churchill was born to George Spencer-Churchill 6th Duke Marlborough (age 26) and [his wife] Jane Stewart Duchess Marlborough (age 22). Coefficient of inbreeding 6.26%.
On 02 Jun 1822 [his son] John Winston Spencer-Churchill 7th Duke Marlborough was born to George Spencer-Churchill 6th Duke Marlborough (age 28) and [his wife] Jane Stewart Duchess Marlborough (age 24). Coefficient of inbreeding 6.26%.
On 18 Dec 1823 William Duncombe 2nd Baron Feversham (age 25) and [his sister-in-law] Louisa Stewart Baroness Feversham Duncombe Park (age 19) were married. She the daughter of George Stewart 8th Earl Galloway (age 55) and Jane Paget Countess Galloway (age 49).
In 1824 [his son] Alfred Spencer-Churchill was born to George Spencer-Churchill 6th Duke Marlborough (age 30) and [his wife] Jane Stewart Duchess Marlborough (age 26). Coefficient of inbreeding 6.26%.
On 25 Jul 1825 [his son] Alan Spencer-Churchill was born to George Spencer-Churchill 6th Duke Marlborough (age 31) and [his wife] Jane Stewart Duchess Marlborough (age 27). Coefficient of inbreeding 6.26%.
On 05 Mar 1840 [his father] George Spencer-Churchill 5th Duke Marlborough (age 73) died. His son George Spencer-Churchill 6th Duke Marlborough (age 46) succeeded 6th Duke Marlborough, 6th Marquess of Blandford, 6th Earl of Marlborough, 6th Baron Churchill of Sandridge in Hertfordshire, 8th Earl of Sunderland, 10th Baron Spencer Wormleighton. [his wife] Jane Stewart Duchess Marlborough (age 42) by marriage Duchess Marlborough.
On 02 Apr 1841 [his mother] Susan Stewart Duchess Marlborough (age 73) died.
On 09 Aug 1841 [his brother-in-law] Keith Stewart (age 27) and Mary Caroline Fitzroy (age 18) were married. He the son of George Stewart 8th Earl Galloway and Jane Paget Countess Galloway (age 66). She a great x 4 granddaughter of King Charles II of England Scotland and Ireland. 
On 12 Jul 1843 [his son] John Winston Spencer-Churchill 7th Duke Marlborough (age 21) and [his daughter-in-law] Frances Anne Emily Vane Duchess Marlborough (age 21) were married. She the daughter of Charles William Vane 3rd Marquess Londonderry (age 65) and Frances Vane Tempest Marchioness Londonderry (age 43). He the son of George Spencer-Churchill 6th Duke Marlborough (age 49) and Jane Stewart Duchess Marlborough (age 45).
In 1844 [his wife] Jane Stewart Duchess Marlborough (age 46) died.
On 10 Jun 1846 George Spencer-Churchill 6th Duke Marlborough (age 52) and Charlotte Augusta Flower Duchess Marlborough (age 28) were married. She by marriage Duchess Marlborough. The difference in their ages was 24 years. He the son of George Spencer-Churchill 5th Duke Marlborough and Susan Stewart Duchess Marlborough.
In 1847 [his son] Almeric Athelstan Spencer-Churchill was born to George Spencer-Churchill 6th Duke Marlborough (age 53) and [his wife] Charlotte Augusta Flower Duchess Marlborough (age 29).
On 04 May 1848 [his daughter] Clementina Augusta Spencer-Churchill Countess Camden was born to George Spencer-Churchill 6th Duke Marlborough (age 54) and [his wife] Charlotte Augusta Flower Duchess Marlborough (age 30).
In 1850 [his wife] Charlotte Augusta Flower Duchess Marlborough (age 32) died.
On 18 Oct 1851 George Spencer-Churchill 6th Duke Marlborough (age 57) and Jane Francis Stewart Duchess Marlborough were married. She by marriage Duchess Marlborough. He the son of George Spencer-Churchill 5th Duke Marlborough and Susan Stewart Duchess Marlborough. They were first cousins.
On 28 Mar 1853 [his son] Edward Spencer-Churchill was born to George Spencer-Churchill 6th Duke Marlborough (age 59) and [his wife] Jane Francis Stewart Duchess Marlborough. Coefficient of inbreeding 6.28%.
On 12 Dec 1856 [his son] Almeric Athelstan Spencer-Churchill (age 9) died.
In 1857 [his former sister-in-law] Caroline Stewart (age 58) died.
On 05 Feb 1857 [his son] Alfred Spencer-Churchill (age 33) and [his daughter-in-law] Harriett Louisa Hester Gough (age 25) were married. He the son of George Spencer-Churchill 6th Duke Marlborough (age 63) and Jane Stewart Duchess Marlborough. They were third cousins.
On 01 Jul 1857 George Spencer-Churchill 6th Duke Marlborough (age 63) died. His son [his son] John Winston Spencer-Churchill 7th Duke Marlborough (age 35) succeeded 7th Duke Marlborough, 7th Marquess of Blandford, 7th Earl of Marlborough, 7th Baron Churchill of Sandridge in Hertfordshire, 9th Earl of Sunderland, 11th Baron Spencer Wormleighton. [his daughter-in-law] Frances Anne Emily Vane Duchess Marlborough (age 35) by marriage Duchess Marlborough.
[his son] Alan Spencer-Churchill and Rosalind Dowker were married. He the son of George Spencer-Churchill 6th Duke Marlborough and Jane Stewart Duchess Marlborough.
Kings Wessex: Great x 23 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 20 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 26 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 21 Grand Son of Maredudd ap Bleddyn King Powys
Kings England: Great x 13 Grand Son of King Edward III of England
Kings Scotland: Great x 16 Grand Son of Robert "The Bruce" I King Scotland
Kings Franks: Great x 19 Grand Son of Louis VII King Franks
Kings France: Great x 15 Grand Son of Philip "The Fair" IV King France
Great x 4 Grandfather: Henry Spencer 1st Earl of Sunderland 8 x Great Grand Son of Henry IV King England
Great x 3 Grandfather: Robert Spencer 2nd Earl of Sunderland 9 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Dorothy Sidney Countess Sunderland
8 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Charles Spencer 3rd Earl of Sunderland 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: George Digby 2nd Earl Bristol
8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Anne Digby Countess Sunderland 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Anne Russell Countess Bristol 9 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Charles Spencer 3rd Duke Marlborough 11 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Winston Churchill
Great x 3 Grandfather: John Churchill 1st Duke Marlborough 14 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandmother: Elizabeth Drake 13 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 2 Grandmother: Anne Churchill Countess Sunderland 15 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: Richard Jennings
Great x 3 Grandmother: Sarah Jennings Duchess Marlborough
Great x 4 Grandmother: Frances Thornhurst
GrandFather: George Spencer 4th Duke Marlborough 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John Trevor
Great x 3 Grandfather: Thomas Trevor 1st Baron Trevor Bromham
Great x 2 Grandfather: Thomas Trevor 2nd Baron Trevor Bromham
Great x 3 Grandmother: Elizabeth Searle
Great x 1 Grandmother: Elizabeth Trevor Duchess Marlborough
Father: George Spencer-Churchill 5th Duke Marlborough 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: William Russell 1st Duke Bedford 9 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: William Russell 10 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Anne Carr Countess of Bedford
9 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Wriothesley Russell 2nd Duke Bedford 9 x Great Grand Son of Henry IV King England
Great x 4 Grandfather: Thomas Wriothesley 4th Earl of Southampton 2nd Earl Chichester
7 x Great Grand Son of Henry IV King England
Great x 3 Grandmother: Rachel Wriothesley 8 x Great Grand Daughter of Henry IV King England
Great x 4 Grandmother: Rachel Massue Countess Southampton
Great x 1 Grandfather: John Russell 4th Duke Bedford 10 x Great Grand Son of Henry IV King England
Great x 3 Grandfather: John Howland
Great x 2 Grandmother: Elizabeth Howland Duchess Bedford
Great x 4 Grandfather: Josiah Child
Great x 3 Grandmother: Elizabeth Child
GrandMother: Caroline Russell Duchess Marlborough 11 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: William Leveson-Gower 4th Baronet
Great x 3 Grandfather: John Leveson-Gower 1st Baron Gower
Great x 4 Grandmother: Jane Granville Baroness Gower
Great x 2 Grandfather: John Leveson-Gower 1st Earl Gower 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John Manners 1st Duke Rutland
8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Catherine Manners Baroness Gower 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Catherine Noel Duchess Rutland
11 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 1 Grandmother: Gertrude Leveson-Gower Duchess Bedford 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Robert Pierrepont
9 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Evelyn Pierrepont 1st Duke Kingston upon Hull 10 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Elizabeth Evelyn
Great x 2 Grandmother: Evelyn Pierrepont Baroness Gower 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: William Feilding 2nd Earl Desmond 3rd Earl Denbigh
7 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Mary Fielding Countess Kingston upon Hull 8 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Mary Carey Countess Desmond and Denbigh
8 x Great Grand Daughter of King Edward III of England
George Spencer-Churchill 6th Duke Marlborough 13 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: James Stewart 2nd Earl Galloway
Great x 3 Grandfather: Alexander Stewart 3rd Earl Galloway
Great x 2 Grandfather: James Stewart 5th Earl Galloway 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: James Douglas 2nd Earl Queensberry
8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Mary Douglas Countess Galloway 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Margaret Stewart Countess Queensberry 8 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Alexander Stewart 6th Earl Galloway 11 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Alexander Montgomerie 8th Earl Eglinton 9 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Alexander Montgomerie 9th Earl Eglinton 10 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Elizabeth Crichton
Great x 2 Grandmother: Catherine Montgomerie Countess Galloway 11 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: William Cochrane 1st Earl Dundonald
Great x 3 Grandmother: Margaret Cochrane
GrandFather: John Stewart 7th Earl Galloway 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: William Cochrane
Great x 3 Grandfather: John Cochrane 2nd Earl Dundonald 10 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Catherine Kennedy 9 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: John Cochrane 4th Earl Dundonald 11 x Great Grand Son of King Edward III of England
Great x 1 Grandmother: Catherine Cochrane Countess Galloway 12 x Great Grand Daughter of King Edward III of England
Mother: Susan Stewart Duchess Marlborough 13 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: George Dashwood
Great x 3 Grandfather: Robert Dashwood 1st Baronet
Great x 4 Grandmother: Margaret Perry
Great x 2 Grandfather: Robert Dashwood
Great x 4 Grandfather: Thomas Chamberlayne 2nd Baronet
Great x 3 Grandmother: Penelope Chamberlayne Lady Dashwood
Great x 1 Grandfather: James Dashwood 2nd Baronet
Great x 4 Grandfather: John Reade 1st Baronet
Great x 3 Grandfather: James Reade 2nd Baronet
Great x 4 Grandmother: Susanna Style Lady Reade
Great x 2 Grandmother: Dorothy Reade
Great x 4 Grandfather: Robert Dring of Isleworth, Middlesex
Great x 3 Grandmother: Love Dring Lady Reade
GrandMother: Anne Dashwood Countess Galloway
Great x 4 Grandfather: Edward Spencer
Great x 3 Grandfather: John Spencer
Great x 2 Grandfather: Edward Spencer
Great x 1 Grandmother: Elizabeth Spencer Lady Dashwood