In 1909 [his father] Arthur Charles Wellesley 5th Duke Wellington 1876-1941 (age 32) and [his mother] Lillian Maud Glen Coats Duchess Wellington (age 24) were married. He the son of Arthur Charles Wellesley 4th Duke Wellington 1849-1934 (age 59) and Kathleen Emily Bulkeley Williams Duchess Wellington 1848-1927 (age 60).
On 14 Jul 1912 Henry Wellesley 6th Duke Wellington was born to Arthur Charles Wellesley 5th Duke Wellington 1876-1941 (age 36) and Lillian Maud Glen Coats Duchess Wellington (age 27).
On 18 Jun 1934 [his grandfather] Arthur Charles Wellesley 4th Duke Wellington 1849-1934 (age 85) died. His son [his father] Arthur Charles Wellesley 5th Duke Wellington 1876-1941 (age 58) succeeded 5th Duke Wellington, 9th Earl Mornington, 9th Viscount Wellesley of Dangan Castle, 5th Viscount Wellington of Talavera. [his mother] Lillian Maud Glen Coats Duchess Wellington (age 49) by marriage Duchess Wellington.
On 11 Dec 1941 [his father] Arthur Charles Wellesley 5th Duke Wellington 1876-1941 (age 65) died. His son Henry Wellesley 6th Duke Wellington (age 29) succeeded 6th Duke Wellington, 10th Earl Mornington, 10th Viscount Wellesley of Dangan Castle, 6th Viscount Wellington of Talavera.
On 16 Sep 1943 Henry Wellesley 6th Duke Wellington (age 31) was killed during an attempt to take Pimple Hill. He was buried where he lay. He was unmarried and without issue. His uncle [his uncle] Gerald Wellesley 7th Duke Wellington 1885-1972 (age 58) succeeded 7th Duke Wellington, 11th Earl Mornington, 11th Viscount Wellesley of Dangan Castle, 7th Viscount Wellington of Talavera. (age 54) by marriage Duchess Wellington.
Paternal Family Tree: Colley
Kings Wessex: Great x 26 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 23 Grand Son of Owain "Great" King Gwynedd 1100-1170
Kings Seisyllwg: Great x 29 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 24 Grand Son of Maredudd ap Bleddyn King Powys 1047-1132
Kings England: Great x 15 Grand Son of King Henry VII of England and Ireland
Kings Scotland: Great x 22 Grand Son of William "Lion" I King Scotland
Kings Franks: Great x 22 Grand Son of Louis VII King Franks
Kings France: Great x 18 Grand Son of Philip "The Fair" IV King France
Great x 4 Grandfather: Richard Colley aka Wesley 1st Baron Mornington
Great x 3 Grandfather: Garrett Wellesley 1st Earl Mornington
Great x 4 Grandmother: Elizabeth Sale
Great x 2 Grandfather: Arthur Wellesley 1st Duke Wellington
Great x 4 Grandfather: Arthur Hill aka Hill-Trevor 1st Viscount Dungannon
Great x 3 Grandmother: Anne Hill Countess Mornington 1742-1831
Great x 1 Grandfather: Charles Wellesley
Great x 4 Grandfather: Thomas Pakenham 1st Baron Longford
Great x 3 Grandfather: Edward Pakenham 2nd Baron Longford
Great x 2 Grandmother: Catherine "Kitty" Pakenham Duchess Wellington 1773-1831
Great x 4 Grandfather: Hercules Langford Rowley 1st Earl Langford
Great x 3 Grandmother: Catherine Rowley Baroness Longford
Great x 4 Grandmother: Elizabeth Rowley 1st Viscountess Langford
GrandFather: Arthur Charles Wellesley 4th Duke Wellington 1849-1934 13 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: Philip Medows
Great x 3 Grandfather: Charles Medows aka Pierrepont 1st Earl Manvers 11 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Frances Pierrepont
10 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Henry Manvers Pierrepont 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: William Mills of Richmond
Great x 3 Grandmother: Anne Mills Countess Manvers
Great x 1 Grandmother: Augusta Sophia Anne Pierrepoint 12 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: Thomas Cecil
9 x Great Grand Son of King Henry VII of England and Ireland
Great x 3 Grandfather: Henry Cecil 1st Marquess Exeter 10 x Great Grand Son of King Henry VII of England and Ireland
Great x 2 Grandmother: Sophia Cecil 11 x Great Grand Daughter of King Henry VII of England and Ireland
Father: Arthur Charles Wellesley 5th Duke Wellington 1876-1941 14 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: Griffith Williams
Great x 3 Grandfather: Hugh Williams 8th Baronet
Great x 2 Grandfather: Robert Williams 9th Baronet
Great x 4 Grandfather: Thomas Rowlands
Great x 3 Grandmother: Emma Bridget Rowlands Viscountess Bulkeley
Great x 1 Grandfather: Robert Williams
GrandMother: Kathleen Emily Bulkeley Williams Duchess Wellington 1848-1927
Henry Wellesley 6th Duke Wellington 1912-1943 15 x Great Grand Son of King Henry VII of England and Ireland
GrandFather: George Coats