In 1784 [her father] Edward Clive 1st Earl Powis (age 29) and [her mother] Henrietta Antonia Herbert 3rd Countess Powis (age 25) were married. She the daughter of Henry Herbert 1st Earl Powis 1703-1772 and Barbara Herbert Countess Powis 1735-1786 (age 48). She a great x 3 granddaughter of King James II of England Scotland and Ireland. 
On 12 Sep 1787 Charlotte Herbert Duchess Northumberland was born to Edward Clive 1st Earl Powis (age 33) and Henrietta Antonia Herbert 3rd Countess Powis (age 29).
On 14 May 1804 [her father] Edward Clive 1st Earl Powis (age 50) was created 1st Earl Powis. [her mother] Henrietta Antonia Herbert 3rd Countess Powis (age 45) by marriage Countess Powis.
On 19 May 1810 James Murray 1st Baron Glenlyon (age 27) and [her future sister-in-law] Emily Frances Percy Baroness Goldolphin Helston (age 22) were married at St Martin in the Fields [Map]. She the daughter of Hugh Percy 2nd Duke Northumberland (age 67) and Frances Julia Burrell Duchess Northumberland 1752-1820 (age 57). He the son of John Murray 4th Duke Atholl 1755-1830 (age 54).
On 29 Apr 1817 Hugh Percy 3rd Duke Northumberland (age 32) and Charlotte Herbert Duchess Northumberland (age 29) were married at Northumberland aka Suffolk House Strand. She the daughter of Edward Clive 1st Earl Powis (age 63) and Henrietta Antonia Herbert 3rd Countess Powis (age 58). He the son of Hugh Percy 2nd Duke Northumberland (age 74) and Frances Julia Burrell Duchess Northumberland 1752-1820 (age 64). She a great x 4 granddaughter of King James II of England Scotland and Ireland.
On 10 Jul 1817 [her father-in-law] Hugh Percy 2nd Duke Northumberland (age 74) died. His son [her husband] Hugh Percy 3rd Duke Northumberland (age 32) succeeded 3rd Duke Northumberland, 3rd Baron Lovain, 4th Baron Percy, 6th Baronet Smithson of Stanwick in Yorkshire. Charlotte Herbert Duchess Northumberland (age 29) by marriage Duchess Northumberland.
On 03 Jun 1830 [her mother] Henrietta Antonia Herbert 3rd Countess Powis (age 71) died.
On 16 May 1839 [her father] Edward Clive 1st Earl Powis (age 85) died at 45 Berkeley Square, Mayfair. He was buried at St Mary the Virgin Church, Bromfield. His son [her brother] Edward Herbert 2nd Earl Powis (age 54) succeeded 2nd Earl Powis. Lucy Graham Countess Powis (age 45) by marriage Countess Powis.
On 20 Jun 1844 [her sister-in-law] Emily Frances Percy Baroness Goldolphin Helston (age 56) died.
Monument to the Daughters of [her father-in-law] Hugh Percy 2nd Duke Northumberland in Church of St John the Baptist Stanwick [Map] sculpted by Joseph Gott (age 58).
Emily Frances Percy Baroness Goldolphin Helston: In 1788 she was born to Hugh Percy 2nd Duke Northumberland (age 45) and Frances Julia Burrell Duchess Northumberland 1752-1820 (age 35). On 19 May 1810 James Murray 1st Baron Glenlyon (age 27) and Emily Frances Percy Baroness Goldolphin Helston (age 22) were married at St Martin in the Fields. She the daughter of Hugh Percy 2nd Duke Northumberland (age 67) and Frances Julia Burrell Duchess Northumberland 1752-1820 (age 57). He the son of John Murray 4th Duke Atholl 1755-1830 (age 54).
On 11 Feb 1847 [her husband] Hugh Percy 3rd Duke Northumberland (age 61) died without issue at Alnwick, Northumberland [Map].
[her brother-in-law] Algernon Percy 4th Duke Northumberland (age 54) succeeded 4th Duke Northumberland, 4th Baron Lovain, 5th Baron Percy, 7th Baronet Smithson of Stanwick in Yorkshire. Eleanor Grosvenor Duchess Northumberland 1820-1911 (age 26) by marriage Duchess Northumberland.
On 27 Jul 1866 Charlotte Herbert Duchess Northumberland (age 78) died at Twickenham, Richmond. She was buried at Westminster Abbey [Map].
Paternal Family Tree: Clive
Maternal Family Tree: Ursula St Barbe 1532-1602
Kings Wessex: Great x 22 Grand Daughter of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 19 Grand Daughter of Owain "Great" King Gwynedd 1100-1170
Kings Seisyllwg: Great x 25 Grand Daughter of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 20 Grand Daughter of Maredudd ap Bleddyn King Powys 1047-1132
Kings England: Great x 4 Grand Daughter of King James II of England Scotland and Ireland
Kings Scotland: Great x 16 Grand Daughter of Robert "The Bruce" I King Scotland
Kings Franks: Great x 19 Grand Daughter of Louis VII King Franks
Kings France: Great x 6 Grand Daughter of Henry IV King France
Great x 2 Grandfather: Robert Clive
Great x 1 Grandfather: Richard Clive
GrandFather: Robert Clive "Clive of India"
Father: Edward Clive 1st Earl Powis
Charlotte Herbert Duchess Northumberland 1787-1866 4 x Great Grand Daughter of King James II of England Scotland and Ireland
Great x 4 Grandfather: Matthew Herbert
Great x 3 Grandfather: Francis Herbert
Great x 2 Grandfather: Richard Herbert of Bromfield and Dolgeiog
Great x 1 Grandfather: Francis Herbert of Oakley Park Montgomeryshire 6 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: Edward Herbert 1st Baron Herbert Chirbury 10 x Great Grand Son of King John "Lackland" of England
Great x 3 Grandfather: Richard Herbert 2nd Baron Herbert Chirbury 11 x Great Grand Son of King John "Lackland" of England
Great x 4 Grandmother: Mary Herbert Baroness Herbert Chirbury 13 x Great Grand Daughter of King John "Lackland" of England
Great x 2 Grandmother: Florence Herbert 5 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: John Egerton 1st Earl Bridgewater
Great x 3 Grandmother: Mary Egerton Baroness Herbert Chirbury 4 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandmother: Frances Stanley Countess Bridgewater 1583-1636
3 x Great Grand Daughter of King Henry VII of England and Ireland
GrandFather: Henry Herbert 1st Earl Powis 1703-1772 7 x Great Grand Son of King Henry VII of England and Ireland
Great x 2 Grandfather: John Oldbury
Great x 1 Grandmother: Dorothy Oldbury
Mother: Henrietta Antonia Herbert 3rd Countess Powis 3 x Great Grand Daughter of King James II of England Scotland and Ireland
Great x 4 Grandfather: Percy Herbert 2nd Baron Powis 7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: William Herbert 1st Marquess Powis 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Elizabeth Craven Baroness Herbert
Great x 2 Grandfather: William Herbert 2nd Marquess Powis 1660-1745 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Edward Somerset 2nd Marquess Worcester
8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Elizabeth Somerset Marchioness Powis 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Elizabeth Dormer
9 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Edward Herbert 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John Preston 1st Baronet
Great x 3 Grandfather: Thomas Preston 3rd Baronet
Great x 2 Grandmother: Mary Preston Marchioness Powis 13 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: Caryll Molyneux 3rd Viscount Molyneux
11 x Great Grand Son of King Edward "Longshanks" I of England
Great x 3 Grandmother: Mary Molyneux 12 x Great Grand Daughter of King Edward "Longshanks" I of England
GrandMother: Barbara Herbert Countess Powis 1735-1786 2 x Great Grand Daughter of King James II of England Scotland and Ireland
Great x 4 Grandfather: Charles Waldegrave 3rd Baronet
8 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Henry Waldegrave 1st Baron Waldegrave Chewton Somerset 9 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Helen Englefield Lady Waldegrave 9 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: James Waldegrave 1st Earl Waldegrave Grand Son of King James II of England Scotland and Ireland
Great x 4 Grandfather: King James II of England Scotland and Ireland
Son of King Charles I of England, Scotland and Ireland
Great x 3 Grandmother: Henrietta Fitzjames Countess Newcastle Daughter of King James II of England Scotland and Ireland
Great x 4 Grandmother: Anne Hyde Queen Consort England
Great x 1 Grandmother: Henrietta Waldegrave Great Grand Daughter of King James II of England Scotland and Ireland
Great x 4 Grandfather: John Webb 2nd Baronet 9 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: John Webb 3rd Baronet 10 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Mary Blomer Lady Webb 9 x Great Grand Daughter of King Edward III of England
Great x 2 Grandmother: Mary Webb Countess Waldegrave 1695-1719 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: John Belasyse 1st Baron Belasyse
8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Barbara Belasyse Lady Webb 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Anne Paulett Baroness Belasyse
9 x Great Grand Daughter of King Edward III of England