In 1765 [his father] (age 32) and [his mother] Elizabeth Skeffington Countess Leitrim -1817 were married. She the daughter of Clotworthy Skeffington 1st Earl Massereene and (age 48).
On 09 May 1768 Nathaniel Clements 2nd Earl Leitrim was born to (age 35) and Elizabeth Skeffington Countess Leitrim -1817.
In 1795 [his father] (age 62) was created 1st Earl Leitrim. [his mother] Elizabeth Skeffington Countess Leitrim -1817 by marriage Countess Leitrim.
On 24 Jul 1800 Nathaniel Clements 2nd Earl Leitrim (age 32) and Mary Bermingham were married. He the son of (age 67) and Elizabeth Skeffington Countess Leitrim -1817.
In 1802 [his daughter] Maria Clements was born to Nathaniel Clements 2nd Earl Leitrim (age 33) and [his wife] Mary Bermingham.
On 27 Jul 1804 [his father] (age 71) died. His son Nathaniel Clements 2nd Earl Leitrim (age 36) succeeded 2nd Earl Leitrim.
In 1812 [his son] Francis Nathaniel Clements was born to Nathaniel Clements 2nd Earl Leitrim (age 43) and [his wife] Mary Bermingham.
On 29 May 1817 [his mother] Elizabeth Skeffington Countess Leitrim -1817 died.
On 05 Feb 1840 [his wife] Mary Bermingham died.
On 31 Dec 1854 Nathaniel Clements 2nd Earl Leitrim (age 86) died. His son [his son] (age 48) succeeded 3rd Earl Leitrim.
Edward Southwell Keppel and [his daughter] Maria Clements were married. She the daughter of and Mary Bermingham. He the son of William Charles Keppel 4th Earl Albermarle and Elizabeth Southwell Countess Albermarle 1776-1817. He a great x 3 grandson of King Charles II of England Scotland and Ireland. 
Kings Wessex: Great x 22 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 19 Grand Son of Owain "Great" King Gwynedd 1100-1170
Kings Seisyllwg: Great x 25 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 20 Grand Son of Maredudd ap Bleddyn King Powys 1047-1132
Kings England: Great x 13 Grand Son of King Edward III of England
Kings Scotland: Great x 18 Grand Son of William "Lion" 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 1 Grandfather: Robert Clements
GrandFather: Nathaniel Clements
GrandMother: Hannah Gore
13 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Richard Skeffington
Great x 3 Grandfather: John Skeffington 2nd Viscount Massereene
Great x 4 Grandmother: Anne Newdigate
Great x 2 Grandfather: Clotworthy Skeffington 3rd Viscount Massereene
Great x 4 Grandfather: John Clotworthy 1st Viscount Massereene
Great x 3 Grandmother: Mary Clotworthy
Great x 4 Grandmother: Margaret Jones
Great x 1 Grandfather: Clotworthy Skeffington 4th Viscount Massereene 17 x Great Grand Son of King John "Lackland" of England
Great x 4 Grandfather: Anthony Hungerford
14 x Great Grand Son of King John "Lackland" of England
Great x 3 Grandfather: Edward Hungerford 15 x Great Grand Son of King John "Lackland" of England
Great x 4 Grandmother: Rachel Jones
Great x 2 Grandmother: Rachel Hungerford Viscountess Massereene 16 x Great Grand Daughter of King John "Lackland" of England
Great x 4 Grandfather: John Hele
Great x 3 Grandmother: Jane Hele
GrandFather: Clotworthy Skeffington 1st Earl Massereene 11 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Lieutenant-Colonel John Chichester
7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Arthur Chichester 2nd Earl Donegal -1678 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Mary Jones
Great x 2 Grandfather: Arthur Chichester 3rd Earl Donegal 1666-1706 9 x Great Grand Son of King Edward III of England
Great x 1 Grandmother: Catherine Chichester Visountess Massereene 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Arthur Forbes 1st Baronet
Great x 3 Grandfather: Arthur Forbes 1st Earl Granard
Great x 2 Grandmother: Catherine Forbes
Mother: Elizabeth Skeffington Countess Leitrim -1817 12 x Great Grand Daughter of King Edward III of England