On 22 Mar 1802 [his grandfather] James Alexander 1st Earl Caledon (age 72) died at his house in Parnell aka Rutland Square. His son [his father] Du Pre Alexander 2nd Earl Caledon (age 24) succeeded 2nd Earl Caledon in County Tyrone. [his mother] Catherine Yorke Countess Caledon (age 15) by marriage Countess Caledon in County Tyrone.
On 16 Oct 1811 [his father] Du Pre Alexander 2nd Earl Caledon (age 33) and [his mother] Catherine Yorke Countess Caledon (age 25) were married at St James' Church, Piccadilly. She the daughter of Philip Yorke 3rd Earl of Hardwicke (age 54) and Elizabeth Lindsay Countess Hardwicke (age 48). He the son of James Alexander 1st Earl Caledon.
On 27 Jul 1812 James Alexander 3rd Earl Caledon was born to Du Pre Alexander 2nd Earl Caledon (age 34) and Catherine Yorke Countess Caledon (age 26).
On 08 Apr 1839 [his father] Du Pre Alexander 2nd Earl Caledon (age 61) died. His son James Alexander 3rd Earl Caledon (age 26) succeeded 3rd Earl Caledon in County Tyrone.
On 30 Jun 1855 James Alexander 3rd Earl Caledon (age 42) died.
Kings Wessex: Great x 23 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 19 Grand Son of Owain "Great" King Gwynedd
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
Kings England: Great x 14 Grand Son of King Edward III of England
Kings Scotland: Great x 15 Grand Son of Robert "The Bruce" I King Scotland
Kings Franks: Great x 20 Grand Son of Louis VII King Franks
Kings France: Great x 16 Grand Son of Philip "The Fair" IV King France
Great x 1 Grandfather: Nathaniel Alexander
GrandFather: James Alexander 1st Earl Caledon
James Alexander 3rd Earl Caledon 14 x Great Grand Son of King Edward III of England
GrandFather: Philip Yorke 3rd Earl of Hardwicke
Great x 1 Grandmother: Catherine Blount Freeman
Mother: Catherine Yorke Countess Caledon 13 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: James Lindsay 5th Earl Balcarres 11 x Great Grand Son of King Edward III of England
GrandMother: Elizabeth Lindsay Countess Hardwicke 12 x Great Grand Daughter of King Edward III of England
Great x 1 Grandmother: Anne Dalrymple Countess Balcarres