Jane Francis Stewart Duchess Marlborough was born to Edward Richard Stewart and Katharine Charteris.
On 13 Jan 1819 [her future husband] George Spencer-Churchill 6th Duke Marlborough (age 25) and Jane Stewart Duchess Marlborough 1798-1844 (age 21) were married. She the daughter of George Stewart 8th Earl Galloway 1768-1834 (age 50) and Jane Paget Countess Galloway 1774-1842 (age 44). He the son of George Spencer-Churchill 5th Duke Marlborough 1766-1840 (age 52) and Susan Stewart Duchess Marlborough 1767-1841 (age 51). They were first cousins.
On 10 Jun 1846 [her future husband] George Spencer-Churchill 6th Duke Marlborough (age 52) and Charlotte Augusta Flower Duchess Marlborough 1818-1850 (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 1766-1840 and Susan Stewart Duchess Marlborough 1767-1841.
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 1766-1840 and Susan Stewart Duchess Marlborough 1767-1841. They were first cousins.
On 28 Mar 1853 [her son] Edward Spencer-Churchill was born to [her husband] George Spencer-Churchill 6th Duke Marlborough (age 59) and Jane Francis Stewart Duchess Marlborough. Coefficient of inbreeding 6.28%.
On 01 Jul 1857 [her husband] George Spencer-Churchill 6th Duke Marlborough (age 63) died. His son [her step-son] John Winston Spencer-Churchill 7th Duke Marlborough 1822-1883 (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. Frances Anne Emily Vane Duchess Marlborough (age 35) by marriage Duchess Marlborough.
Paternal Family Tree: Stewart
Kings Wessex: Great x 23 Grand Daughter of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 20 Grand Daughter of Owain "Great" King Gwynedd 1100-1170
Kings Seisyllwg: Great x 26 Grand Daughter of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 21 Grand Daughter of Maredudd ap Bleddyn King Powys 1047-1132
Kings England: Great x 11 Grand Daughter of King Henry VII of England and Ireland
Kings Scotland: Great x 16 Grand Daughter of Robert "The Bruce" I King Scotland
Kings Franks: Great x 20 Grand Daughter of Louis VII King Franks
Kings France: Great x 14 Grand Daughter of Charles "Beloved Mad" VI King France
Great x 4 Grandfather: James Stewart 2nd Earl Galloway 1610-1671
Great x 3 Grandfather: Alexander Stewart 3rd Earl Galloway -1690
Great x 2 Grandfather: James Stewart 5th Earl Galloway 1670-1746 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: James Douglas 2nd Earl Queensberry 1622-1671 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 1638-1701 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
GrandFather: John Stewart 7th Earl Galloway 1736-1806 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: William Cochrane
Great x 3 Grandfather: 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: 11 x Great Grand Son of King Edward III of England
Great x 1 Grandmother: 12 x Great Grand Daughter of King Edward III of England
Father: Edward Richard Stewart 13 x Great Grand Son 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 1743-1830
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
Jane Francis Stewart Duchess Marlborough 11 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: James Wemyss 1st Lord Burntisland 1656-1682
Great x 3 Grandfather: David Wemyss 4th Earl Wemyss 6 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandmother: Margaret Wemyss Countess Cromartie 3rd Countess Wemyss 5 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 2 Grandfather: James Wemyss 5th Earl Wemyss 1699-1756 7 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: William Douglas 1st Duke Queensberry 9 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Anne Douglas 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Isabel Douglas Countess Queensberry 1642-1691 8 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Francis Charteris de jure 7th Earl Wemyss 1723-1808 8 x Great Grand Son of King Henry VII of England and Ireland
Great x 3 Grandfather: Colonel Francis Charteris
Great x 2 Grandmother: Janet Charteris
GrandFather: Francis Wemyss Douglas 9 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: Lewis Gordon 3rd Marquess Huntly 1626-1653 8 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: George Gordon 1st Duke Gordon 1643-1716 9 x Great Grand Son of King Edward III of England
Great x 2 Grandfather: Alexander Gordon 2nd Duke Gordon 1678-1728 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Henry Howard 6th Duke of Norfolk 8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Elizabeth Howard Duchess Gordon 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Jane Bickerton Duchess Norfolk
Great x 1 Grandmother: Catherine Gordon Countess Wemyss 1713-1791 11 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: John Mordaunt 1st Viscount Mordaunt 8 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Charles Mordaunt 3rd Earl Peterborough 1st Earl Monmouth 9 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Elizabeth Carey Viscountess Mordaunt 8 x Great Grand Daughter of King Edward III of England
Great x 2 Grandmother: Henrietta Mordaunt Duchess Gordon -1760 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Alexander Fraser
Great x 3 Grandmother: Carey Fraser Countess Peterborough and Monmouth
Mother: Katharine Charteris 10 x Great Grand Daughter of King Henry VII of England and Ireland