Mary Godolphin Duchess Leeds was born to Francis Godolphin 2nd Earl Godolphin and Henrietta Churchill 2nd Duchess Marlborough.
In Mar 1698 [her father] Francis Godolphin 2nd Earl Godolphin (age 19) and [her mother] Henrietta Churchill 2nd Duchess Marlborough (age 16) were married. She the daughter of John Churchill 1st Duke Marlborough (age 47) and Sarah Jennings Duchess Marlborough (age 37). He the son of Sidney Godolphin 1st Earl Godolphin (age 52) and Margaret Blagge.
On 15 Sep 1712 [her grandfather] Sidney Godolphin 1st Earl Godolphin (age 67) died. His son [her father] Francis Godolphin 2nd Earl Godolphin (age 34) succeeded 2nd Earl Godolphin, 2nd Viscount Rialton, 2nd Baron Godolphin of Rialton in Cornwall. [her mother] Henrietta Churchill 2nd Duchess Marlborough (age 31) by marriage Countess Godolphin.
On 16 Jun 1722 [her grandfather] John Churchill 1st Duke Marlborough (age 72) died at Cranbourne Lodge, Windsor. His daughter [her mother] Henrietta Churchill 2nd Duchess Marlborough (age 40) succeeded 2nd Duchess Marlborough, 2nd Marchioness of Blandford, 2nd Countess of Marlborough, 2nd Baroness Churchill of Sandridge in Hertfordshire. [her father] Francis Godolphin 2nd Earl Godolphin (age 43) by marriage Duke Marlborough.
On 09 May 1731 Peregrine Osborne 3rd Duke Leeds (age 39) died. His son [her future husband] Thomas Osborne 4th Duke Leeds (age 17) succeeded 4th Duke Leeds, 4th Earl of Danby, 4th Viscount Osborne, 4th Viscount Latimer, 4th Baron Osborne of Kinderton, 5th Baronet Osborne of Kiveton.
On 24 Oct 1733 [her mother] Henrietta Churchill 2nd Duchess Marlborough (age 52) died. Her nephew Charles Spencer 3rd Duke Marlborough (age 26) succeeded 3rd Duke Marlborough, 3rd Marquess of Blandford, 3rd Earl of Marlborough, 3rd Baron Churchill of Sandridge in Hertfordshire. Elizabeth Trevor Duchess Marlborough 1713-1761 (age 20) by marriage Duchess Marlborough.
On 23 Jan 1735 [her father] Francis Godolphin 2nd Earl Godolphin (age 56) was created 1st Baron Godolphin of Helston in Cornwall with a special remainder to heirs male of his uncle Henry Godolphin.
On 26 Jun 1740 Thomas Osborne 4th Duke Leeds (age 26) and Mary Godolphin Duchess Leeds were married. She by marriage Duchess Leeds. She the daughter of Francis Godolphin 2nd Earl Godolphin (age 61) and Henrietta Churchill 2nd Duchess Marlborough. He the son of Peregrine Osborne 3rd Duke Leeds.
On 29 Jan 1751 [her son] Francis Osborne 5th Duke Leeds was born to [her husband] Thomas Osborne 4th Duke Leeds (age 37) and Mary Godolphin Duchess Leeds.
On 23 Mar 1789 [her former husband] Thomas Osborne 4th Duke Leeds (age 75) died at St James' Square. He was buried at the Osborne Family Chapel at All Hallows' Church Harthill [Map]. His son [her son] Francis Osborne 5th Duke Leeds (age 38) succeeded 5th Duke Leeds, 5th Earl of Danby, 5th Viscount Osborne, 5th Viscount Latimer, 5th Baron Osborne of Kinderton, 6th Baronet Osborne of Kiveton. (age 25) by marriage Duchess Leeds.
Paternal Family Tree: Godolphin
Maternal Family Tree: Susanna Temple 1600
Kings Wessex: Great x 20 Grand Daughter of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 17 Grand Daughter of Owain "Great" King Gwynedd 1100-1170
Kings Seisyllwg: Great x 22 Grand Daughter of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 18 Grand Daughter of Maredudd ap Bleddyn King Powys 1047-1132
Kings England: Great x 10 Grand Daughter of King Edward III of England
Kings Scotland: Great x 16 Grand Daughter of William "Lion" I King Scotland
Kings Franks: Great x 16 Grand Daughter of Louis VII King Franks
Kings France: Great x 12 Grand Daughter of Philip "The Fair" IV King France
Great x 4 Grandfather: Thomas Godolphin
Great x 3 Grandfather: Francis Godolphin
Great x 2 Grandfather: William Godolphin
Great x 4 Grandfather: John Killigrew
Great x 3 Grandmother: Margaret Killigrew
Great x 1 Grandfather: Francis Godolphin
GrandFather: Sidney Godolphin 1st Earl Godolphin 8 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Maurice Berkeley 9 x Great Grand Son of King John "Lackland" of England
Great x 3 Grandfather: Henry Berkeley 10 x Great Grand Son of King John "Lackland" of England
Great x 4 Grandmother: Catherine Blount 9 x Great Grand Daughter of King John "Lackland" of England
Great x 2 Grandfather: Henry Berkeley of Bruton 8 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: William Lygon 9 x Great Grand Son of King Edward "Longshanks" I of England
Great x 3 Grandmother: Margaret Lygon 7 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandmother: Eleanor Denys 6 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 1 Grandmother: Dorothy Berkeley 7 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Henry Neville 4 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Henry Neville of Billingbear 5 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Frances aka Elizabeth Gresham
Great x 2 Grandmother: Elizabeth Neville 6 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Henry Killigrew
Great x 3 Grandmother: Anne Killigrew 15 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandmother: Katherine Cooke 14 x Great Grand Daughter of King Henry I "Beauclerc" England
Father: Francis Godolphin 2nd Earl Godolphin 9 x Great Grand Son of King Edward III of England
Great x 1 Grandfather: Thomas Blagge
GrandMother: Margaret Blagge
Great x 3 Grandfather: Henry North of Mildenhall, Suffolk
Great x 2 Grandfather: Roger North of Mildenhall
Great x 4 Grandfather: Richard Knevit
Great x 3 Grandmother: Mary Knevit
Great x 1 Grandmother: Mary North
Great x 3 Grandfather: John Gilbert of Great Finborow, Suffolk
Great x 2 Grandmother: Elizabeth Gilbert
Mary Godolphin Duchess Leeds -1764 10 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Winston Churchill
GrandFather: John Churchill 1st Duke Marlborough 14 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: Bernard Drake
Great x 3 Grandfather: John Drake
Great x 2 Grandfather: John Drake
Great x 1 Grandmother: Elizabeth Drake 13 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: Henry Boteler 10 x Great Grand Son of King Edward "Longshanks" I of England
Great x 3 Grandfather: John Boteler 1st Baron Boteler 11 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandmother: Catherine Waller
Great x 2 Grandmother: Helen Boteler 12 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: George Villiers of Brokesby
Great x 3 Grandmother: Elizabeth Villiers Baroness Boteler Brantfield
Great x 4 Grandmother: Audrey Saunders
Mother: Henrietta Churchill 2nd Duchess Marlborough 15 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 2 Grandfather: John Jennings
Great x 1 Grandfather: Richard Jennings
GrandMother: Sarah Jennings Duchess Marlborough
Great x 2 Grandfather: Gifford Thornhurst 1st Baronet
Great x 1 Grandmother: Frances Thornhurst
Great x 4 Grandfather: John Temple
Great x 3 Grandfather: Alexander Temple
Great x 2 Grandmother: Susanna Temple