On 10 Apr 1817 [her father] Charles Gordon-Lennox 5th Duke Richmond 1791-1860 (age 25) and [her mother] Caroline Paget Duchess Richmond 1796-1874 (age 20) were married. She the daughter of Henry William Paget 1st Marquess Anglesey (age 48) and Caroline Elizabeth Villiers Duchess Argyll (age 42). He the son of Charles Lennox 4th Duke Richmond (age 52) and Charlotte Gordon Duchess Richmond 1768-1842 (age 48). He a great x 3 grandson of King Charles II of England Scotland and Ireland. 
On 28 Aug 1819 [her grandfather] Charles Lennox 4th Duke Richmond (age 54) died. His son [her father] Charles Gordon-Lennox 5th Duke Richmond 1791-1860 (age 28) succeeded 5th Duke Richmond, 5th Earl March, 5th Baron Settrington. [her mother] Caroline Paget Duchess Richmond 1796-1874 (age 23) by marriage Duchess Richmond.
On 13 Apr 1838 Cecilia Catherine Gordon-Lennox Countess Lucan was born to Charles Gordon-Lennox 5th Duke Richmond 1791-1860 (age 46) and Caroline Paget Duchess Richmond 1796-1874 (age 41).
On 10 Sep 1853 Henry Gerard Sturt 1st Baron Alington (age 28) and [her future sister-in-law] Augusta Bingham Baroness Alington (age 21) were married. She the daughter of George Charles Bingham 3rd Earl Lucan 1800-1888 (age 53) and Anne Brudenell Countess Lucan 1809-1877 (age 44). They were first cousins.
On 10 Apr 1856 Charles Stewart Hardinge 2nd Viscount Hardinge (age 33) and [her future sister-in-law] Lavinia Bingham Viscountess Hardinge (age 20) were married. She the daughter of George Charles Bingham 3rd Earl Lucan 1800-1888 (age 55) and Anne Brudenell Countess Lucan 1809-1877 (age 46).
On 21 Oct 1860 [her father] Charles Gordon-Lennox 5th Duke Richmond 1791-1860 (age 69) died. His son [her brother] Charles Gordon-Lennox 6th Duke Richmond (age 42) succeeded 6th Duke Richmond, 6th Earl March, 6th Baron Settrington. Frances Harriett Greville Duchess Richmond 1824-1887 (age 36) by marriage Duchess Richmond.
Before 13 Dec 1860 Charles George Bingham 4th Earl Lucan 1830-1914 (age 30) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 22) were married. She the daughter of Charles Gordon-Lennox 5th Duke Richmond 1791-1860 and Caroline Paget Duchess Richmond 1796-1874 (age 64). He the son of George Charles Bingham 3rd Earl Lucan 1800-1888 (age 60) and Anne Brudenell Countess Lucan 1809-1877 (age 51). She a great x 4 granddaughter of King Charles II of England Scotland and Ireland.
On 13 Dec 1860 [her son] George Bingham 5th Earl Lucan 1860-1949 was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 30) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 22).
On 07 Dec 1861 [her son] Major-General Cecil Edward Bingham was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 31) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 23).
On 05 Jul 1863 [her son] Francis Richard Bingham was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 33) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 25).
On 03 Aug 1864 [her son] Alexander Frederick Bingham was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 34) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 26).
On 15 Sep 1864 [her sister-in-law] Lavinia Bingham Viscountess Hardinge (age 28) died.
On 30 Jun 1866 [her son] Albert Edward Bingham was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 36) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 28).
On 26 Feb 1869 [her daughter] Rosalind Cecilia Caroline Bingham Duchess Abercorn 1869-1958 was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 38) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 30).
On 12 Mar 1874 [her mother] Caroline Paget Duchess Richmond 1796-1874 (age 77) died.
On 04 Nov 1876 [her son] Lionel Ernest Bingham was born to [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 46) and Cecilia Catherine Gordon-Lennox Countess Lucan (age 38).
On 26 Sep 1877 [her brother-in-law] Richard Bingham (age 30) and Mary Elizabeth Cole were married. He the son of George Charles Bingham 3rd Earl Lucan 1800-1888 (age 77) and Anne Brudenell Countess Lucan 1809-1877 (age 68).
On 03 Jul 1888 [her sister-in-law] Augusta Bingham Baroness Alington (age 56) died.
On 10 Nov 1888 [her father-in-law] George Charles Bingham 3rd Earl Lucan 1800-1888 (age 88) died at 13 South Street Park Lane. His son [her husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 58) succeeded 4th Earl Lucan of Castlebar in Mayo, 4th Baron Lucan of Castlebar in Mayo, 10th Baronet Bingham of Castlebar in County Mayo. Cecilia Catherine Gordon-Lennox Countess Lucan (age 50) by marriage Countess Lucan of Castlebar in Mayo.
On 01 Nov 1894 [her son-in-law] James Albert Edward Hamilton 3rd Duke Abercorn 1869-1953 (age 24) and [her daughter] Rosalind Cecilia Caroline Bingham Duchess Abercorn 1869-1958 (age 25) were married at St Paul's Church, Knightsbridge. She the daughter of Charles George Bingham 4th Earl Lucan 1830-1914 (age 64) and Cecilia Catherine Gordon-Lennox Countess Lucan 1838-1910 (age 56). He the son of James Hamilton 2nd Duke Abercorn (age 56) and Mary Anna Curzon Howe Duchess Abercorn 1848-1929 (age 46). They were third cousins. He a great x 5 grandson of King Charles II of England Scotland and Ireland. She a great x 5 granddaughter of King Charles II of England Scotland and Ireland.
On 26 May 1909 [her son] Alexander Frederick Bingham (age 44) died.
On 05 Oct 1910 Cecilia Catherine Gordon-Lennox Countess Lucan (age 72) died.
On 05 Jun 1914 [her former husband] Charles George Bingham 4th Earl Lucan 1830-1914 (age 84) died. His son [her son] George Bingham 5th Earl Lucan 1860-1949 (age 53) succeeded 5th Earl Lucan of Castlebar in Mayo, 5th Baron Lucan of Castlebar in Mayo, 11th Baronet Bingham of Castlebar in County Mayo.
Paternal Family Tree: Stewart
Maternal Family Tree: Frances Twysden 1753-1821
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 4 Grand Daughter of King Charles 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 4 Grandfather: King Charles II of England Scotland and Ireland Son of King Charles I of England, Scotland and Ireland
Great x 3 Grandfather: Charles Lennox 1st Duke Richmond Son of King Charles II of England Scotland and Ireland
Great x 4 Grandmother: Louise Kéroualle 1st Duchess Portsmouth
Great x 2 Grandfather: Charles Lennox 2nd Duke Richmond Grand Son of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: Francis Brudenell 9 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Anne Brudenell Duchess Richmond 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Frances Savile
8 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: George Lennox Great Grand Son of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: Henry Cadogan
Great x 3 Grandfather: William Cadogan 1st Earl Cadogan
Great x 4 Grandmother: Bridget Waller
Great x 2 Grandmother: Sarah Cadogan Duchess Richmond 1705-1751
GrandFather: Charles Lennox 4th Duke Richmond 2 x Great Grand Son of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: William Kerr 2nd Marquess Lothian 1661-1722 6 x Great Grand Son of King Henry VII of England and Ireland
Great x 3 Grandfather: William Kerr 3rd Marquess Lothian 1690-1767 7 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandmother: Jean Campbell Marchioness Lothian 6 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 2 Grandfather: William Henry Kerr 4th Marquess Lothian 1710-1775 8 x Great Grand Son of King Henry VII of England and Ireland
Great x 1 Grandmother: Louisa Kerr 4 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Great x 4 Grandfather: John Darcy
10 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Robert Darcy 3rd Earl Holderness 1681-1721 11 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Bridget Sutton
13 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 2 Grandmother: Caroline Darcy Marchioness Lothian 3 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Great x 3 Grandmother: Frederica Schomberg Countess Holderness and Fitzwalter 2 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Great x 4 Grandmother: Karoline von der Pfalz
Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Father: Charles Gordon-Lennox 5th Duke Richmond 1791-1860 3 x Great Grand Son of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: George Gordon 1st Duke Gordon 1643-1716 9 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Alexander Gordon 2nd Duke Gordon 1678-1728 10 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Elizabeth Howard Duchess Gordon
9 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Cosmo George Gordon 3rd Duke Gordon 1720-1752 11 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Charles Mordaunt 3rd Earl Peterborough 1st Earl Monmouth
9 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Henrietta Mordaunt Duchess Gordon -1760 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Carey Fraser Countess Peterborough and Monmouth
Great x 1 Grandfather: Alexander Gordon 4th Duke Gordon 8 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: George Gordon 1st Earl Aberdeen 1637-1720
Great x 3 Grandfather: William Gordon 2nd Earl Aberdeen
Great x 2 Grandmother: Catherine Gordon Duchess Gordon 1718-1799 7 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: John Murray 1st Duke Atholl
5 x Great Grand Son of King Henry VII of England and Ireland
Great x 3 Grandmother: Susan Murray 6 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandmother: Catherine Hamilton Duchess Atholl 1662-1707
9 x Great Grand Daughter of King Edward III of England
GrandMother: Charlotte Gordon Duchess Richmond 1768-1842 9 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 2 Grandfather: William Maxwell
Great x 1 Grandmother: Jane Maxwell Duchess Gordon
Cecilia Catherine Gordon-Lennox Countess Lucan 1838-1910 4 x Great Grand Daughter of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: Nicholas Bayly
Great x 3 Grandfather: Edward Bayly 1st Baronet
Great x 2 Grandfather: Nicholas Bayly 2nd Baronet Bayly of Plas Newydd in Anglesey
Great x 1 Grandfather: Henry Bayly-Paget 1st Earl Uxbridge 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Henry Paget 9 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Thomas Paget 10 x Great Grand Son of King Edward III of England
Great x 2 Grandmother: Caroline Paget Lady Plas Newydd Anglesey 11 x Great Grand Daughter of King Edward III of England
GrandFather: Henry William Paget 1st Marquess Anglesey 13 x Great Grand Son of King Edward III of England
Mother: Caroline Paget Duchess Richmond 1796-1874 10 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: Edward Villiers 1st Earl Jersey 10 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: William Villiers 2nd Earl Jersey 1682-1721 11 x Great Grand Son of King Edward III of England
Great x 2 Grandfather: William Villiers 3rd Earl Jersey 1707-1769 12 x Great Grand Son of King Edward III of England
Great x 1 Grandfather: George Bussy Villiers 4th Earl Jersey 8 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: John Egerton 3rd Earl Bridgewater 1646-1701
5 x Great Grand Son of King Henry VII of England and Ireland
Great x 3 Grandfather: Scroop Egerton 1st Duke Bridgewater 6 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandmother: Jane Paulet Countess Bridgewater 1656-1716
9 x Great Grand Daughter of King Edward III of England
Great x 2 Grandmother: Anne Egerton Duchess Bedford -1762 7 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: John Churchill 1st Duke Marlborough
14 x Great Grand Son of King Edward "Longshanks" I of England
Great x 3 Grandmother: Elizabeth Churchill Countess Bridgewater 1687-1714 15 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandmother: Sarah Jennings Duchess Marlborough
GrandMother: Caroline Elizabeth Villiers Duchess Argyll 9 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 2 Grandfather: Philip Twysden Bishop Raphoe
Great x 1 Grandmother: Frances Twysden