Paternal Family Tree: Colley
Maternal Family Tree: Anne Hill Countess Mornington 1742-1831
On 6th February 1759 [his father] Garrett Wellesley 1st Earl Mornington [aged 23] and [his mother] Anne Hill Countess Mornington [aged 16] were married. She by marriage Baroness Mornington.
On 20th January 1773 Henry Wellesley 1st Baron Cowley was born to Garrett Wellesley 1st Earl Mornington [aged 37] and Anne Hill Countess Mornington [aged 30].
In 1781 William Pole of Ballyfin in Ireland [aged 68] died. His mother's great-nephew [his brother] William Wellesley aka Wellesley-Pole 3rd Earl Mornington [aged 17] inherited his estates at which time he changed his name from Wellesley to Wellesly-Pole.
On 22nd May 1781 [his father] Garrett Wellesley 1st Earl Mornington [aged 45] died at Kensington. He was buried at Grosvenor Chapel, Mayfair. His son [his brother] Richard [aged 20] succeeded 2nd Earl Mornington, 2nd Viscount Wellesley of Dangan Castle.
In 1784 [his brother] William Wellesley aka Wellesley-Pole 3rd Earl Mornington [aged 20] and [his sister-in-law] Katherine Forbes Countess Mornington [aged 22] were married. He the son of [his father] Garrett Wellesley 1st Earl Mornington and [his mother] Anne Hill Countess Mornington [aged 41].
On 29th November 1794 [his brother] Richard Wellesley 1st Marquess Wellesley [aged 34] and [his sister-in-law] Hyacinthe Gabrielle Roland Marchioness Wellesley [aged 28] were married at St George's Church, Hanover Square. She by marriage Countess Mornington. He the son of [his father] Garrett Wellesley 1st Earl Mornington and [his mother] Anne Hill Countess Mornington [aged 52].
In 1799 [his brother] Richard Wellesley 1st Marquess Wellesley [aged 38] was created 1st Marquess Wellesley. [his sister-in-law] Hyacinthe Gabrielle Roland Marchioness Wellesley [aged 33] by marriage Marchioness Wellesley.
On 20th September 1803 Henry Wellesley 1st Baron Cowley [aged 30] and Charlotte Cadogan Marchioness Anglesey [aged 22] were married. She the daughter of Charles Sloane Cadogan 1st Earl Cadogan [aged 74] and Mary Churchill Countess Cadogan [aged 45]. He the son of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington [aged 61].
On 17th June 1804 [his son] Henry Richard Charles Wellesley 1st Earl Cowley was born to Henry Wellesley 1st Baron Cowley [aged 31] and [his wife] Charlotte Cadogan Marchioness Anglesey [aged 22] at Hertford Street.
On 2nd February 1806 [his son] William Henry George Wellesley was born to Henry Wellesley 1st Baron Cowley [aged 33] and [his wife] Charlotte Cadogan Marchioness Anglesey [aged 24].
On 10th April 1806 [his brother] Arthur Wellesley 1st Duke Wellington [aged 36] and [his sister-in-law] Catherine "Kitty" Pakenham Duchess Wellington [aged 33] were married at Dublin [Map]. He the son of [his father] Garrett Wellesley 1st Earl Mornington and [his mother] Anne Hill Countess Mornington [aged 63].
On 3rd April 1807 [his father-in-law] Charles Sloane Cadogan 1st Earl Cadogan [aged 78] died. His son [his brother-in-law] Charles [aged 57] succeeded 2nd Earl Cadogan, 2nd Viscount Chelsea, 4th Baron Cadogan. He was by then a lunatic.
In 1808 [his daughter] Charlotte Arbuthnot Wellesley Baroness Ebury was born to Henry Wellesley 1st Baron Cowley [aged 34] and [his wife] Charlotte Cadogan Marchioness Anglesey [aged 26]. She married 1831 Robert Grosvenor 1st Baron Ebury, son of Robert Grosvenor 1st Marquess Westminster and Eleanor Egerton Marchioness Westminster, and had issue.
In 1809 [his son] Gerald Wellesley was born to Henry Wellesley 1st Baron Cowley [aged 35] and [his wife] Charlotte Cadogan Marchioness Anglesey [aged 27]. He married 16th September 1856 Magdalen Robinson Montagu, daughter of Henry Robinson Montagu 6th Baron Rokeby.
Between 27th July 1809 and 28th July 1809 the Battle of Talavera, part of the Peninsular War, was fought between an Anglo Spanish army commanded by [his brother] Arthur Wellesley 1st Duke Wellington [aged 40] against the French. The French army withdrew at night after several of its attacks had been repulsed. Following the battle Arthur Wellesley 1st Duke Wellington was created 1st Viscount Wellington of Talavera.
Hugh Gough 1st Viscount Gough [aged 29] commanded the 2nd Battalion of the 87th (Royal Irish Fusiliers) Regiment of Foot.
General Henry Fane [aged 30] commanded the 3rd Prince of Wales Dragoon Guards, 4th Queen's Own Dragoons.
Charles Henry Farrington 2nd Baronet [aged 14] fought.
In 1810 Henry Wellesley 1st Baron Cowley [aged 36] and Charlotte Cadogan Marchioness Anglesey [aged 28] were divorced by an Act of Parliament following her elopement with Henry Paget [aged 41]. Following the divorce, Wellesley was awarded £20,000 plus costs in damages against Paget.
William of Worcester's Chronicle of England
William of Worcester, born around 1415, and died around 1482 was secretary to John Fastolf, the renowned soldier of the Hundred Years War, during which time he collected documents, letters, and wrote a record of events. Following their return to England in 1440 William was witness to major events. Twice in his chronicle he uses the first person: 1. when writing about the murder of Thomas, 7th Baron Scales, in 1460, he writes '… and I saw him lying naked in the cemetery near the porch of the church of St. Mary Overie in Southwark …' and 2. describing King Edward IV's entry into London in 1461 he writes '… proclaimed that all the people themselves were to recognize and acknowledge Edward as king. I was present and heard this, and immediately went down with them into the city'. William’s Chronicle is rich in detail. It is the source of much information about the Wars of the Roses, including the term 'Diabolical Marriage' to describe the marriage of Queen Elizabeth Woodville’s brother John’s marriage to Katherine, Dowager Duchess of Norfolk, he aged twenty, she sixty-five or more, and the story about a paper crown being placed in mockery on the severed head of Richard, 3rd Duke of York.
Available at Amazon in eBook and Paperback format.
On 4th April 1810 [his former brother-in-law] George Cadogan 3rd Earl Cadogan [aged 26] and Honoria Blake Countess Cadogan [aged 35] were married. He the son of [his former father-in-law] Charles Sloane Cadogan 1st Earl Cadogan and Mary Churchill Countess Cadogan [aged 52].
On 29th November 1810 Henry William Paget 1st Marquess Anglesey [aged 42] and Caroline Elizabeth Villiers Duchess Argyll [aged 35] were divorced by an act of Parliament as a result of his having had an affair with [his former wife] Charlotte Cadogan Marchioness Anglesey [aged 29] whose husband Henry Wellesley 1st Baron Cowley [aged 37] also sought a divorce.
After 29th November 1810 Henry William Paget 1st Marquess Anglesey [aged 42] and [his former wife] Charlotte Cadogan Marchioness Anglesey [aged 29] were married. She the daughter of [his former father-in-law] Charles Sloane Cadogan 1st Earl Cadogan and Mary Churchill Countess Cadogan [aged 52]. He the son of Henry Bayly-Paget 1st Earl Uxbridge [aged 66] and Jane Champagné Countess Uxbridge [aged 68].
On 22nd July 1812 the Battle of Salamanca was fought at which an Anglo-Portuguese army under the [his brother] Earl of Wellington [aged 43] defeated Marshal Auguste Marmont's French forces at Arapiles [Map].
Brother General Thomas Bradford [aged 34] and Lieutenant-Colonel Henry Hollis Bradford [aged 31] fought.
Major-General John Le Marchant [aged 46] was killed in action. Wellington is reported as saying to Le Marchant that he must take the first favourable opportunity to engage the enemy's infantry, "You must then charge at all hazards" was his final instruction. Following up the attack of the 5th Infantry Division Le Marchant led the 3rd and 4th Dragoons and the 5th Dragoon Guards in what was probably the most destructive charge made by a single brigade of cavalry in the whole Napoleonic period. The left wing of the French army were on the point of being defeated by the 3rd and 5th divisions of Anglo-Portuguese infantry when Le Marchant's dragoons charged in and destroyed battalion after battalion. Many of the French infantrymen sought the protection of the British infantry to escape the sabres of the dragoons. Le Marchant, knowing he had achieved a magnificent success, was leading a squadron against the last of the formed French infantry when he was shot and his spine broken. See Fletcher's "Galloping at Everything: The British Cavalry in the Peninsula and at Waterloo 1808-15". Spellmount, Staplehurst. ISBN 1-86227-016-3. 1999, pp. 185–188.
On 11th May 1814 [his brother] Arthur Wellesley 1st Duke Wellington [aged 45] was created 1st Duke Wellington. [his sister-in-law] Catherine "Kitty" Pakenham Duchess Wellington [aged 41] by marriage Duchess Wellington.
On 4th July 1815 Henry William Paget 1st Marquess Anglesey [aged 47] was created 1st Marquess Anglesey. [his former wife] Charlotte Cadogan Marchioness Anglesey [aged 33] by marriage Marchioness Anglesey.
Before 1821 Henry Wellesley 1st Baron Cowley [aged 47] and Georgiana Charlotte Augusta Cecil Baroness Cowley were married. She the daughter of James Cecil 1st Marquess Salisbury [aged 72] and Mary Amelia Hill Marchioness Salisbury [aged 70]. He the son of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington [aged 78]. They were second cousin once removed.
On 2nd February 1821 [his brother-in-law] James Brownlow William Gascoyne-Cecil 2nd Marquess Salisbury [aged 29] and Frances Mary Gascoyne Marchioness Salisbury [aged 15] were married. He the son of [his father-in-law] James Cecil 1st Marquess Salisbury [aged 72] and [his mother-in-law] Mary Amelia Hill Marchioness Salisbury [aged 70].
In 1822 George Nugent 1st Marquess Westmeath [aged 36] was created 1st Marquess Westmeath. [his sister-in-law] Emily Anne Bennet Elizabeth Cecil Marchioness Westmeath [aged 32] by marriage Marchioness Westmeath.
On 29th June 1822 Henry Somerset 7th Duke Beaufort [aged 30] and Emily Frances Smith Duchess Beaufort [aged 22] were married. She being the younger half-sister of his first wife Georgiana Frederica Fitzroy both of whom's mother was Anne Wellesley [aged 54] sister of Arthur Wellesley 1st Duke Wellington [aged 53]. An example of a man marrying two sisters, albeit in this case half-sisters. He the son of Henry Charles Somerset 6th Duke Beaufort [aged 55] and Charlotte Sophia Leveson-Gower Duchess Beaufort [aged 51].
On 13th June 1823 [his father-in-law] James Cecil 1st Marquess Salisbury [aged 74] died. His son [his brother-in-law] James [aged 32] succeeded 2nd Marquess Salisbury in Wiltshire, 8th Earl Salisbury. Frances Mary Gascoyne Marchioness Salisbury [aged 17] by marriage Marchioness Salisbury in Wiltshire.
On 29th October 1825 [his brother] Richard Wellesley 1st Marquess Wellesley [aged 65] and [his sister-in-law] Marianne Caton Marchioness Wellesley [aged 37] were married. She by marriage Marchioness Wellesley. The difference in their ages was 27 years. He the son of [his father] Garrett Wellesley 1st Earl Mornington and [his mother] Anne Hill Countess Mornington [aged 83].
She one of the four Caton sisters, daughters of Richard Caton [aged 62], a merchant from Baltimore, the three eldest, known as the "The Three American Graces", married European husbands. Only the fourth daughter Emily Caton [aged 30] had children.
Marianne Caton Marchioness Wellesley married Richard Wellesley 1st Marquess Wellesley,
Elizabeth Caton Baroness Stafford [aged 35] married George William Stafford-Jerningham 8th Baron Stafford [aged 54],
Louisa Catharine Caton Duchess Leeds [aged 32] married firstly Felton Elwell Hervey-Bathurst 1st Baronet and secondly Francis Godolphin Osborne 7th Duke Leeds [aged 27].
Emily Caton married Consul John MacTavish [aged 38].
Annals of the six Kings of England by Nicholas Trivet
Translation of the Annals of the Six Kings of England by that traces the rise and rule of the Angevin aka Plantagenet dynasty from the mid-12th to early 14th century. Written by the Dominican scholar Nicholas Trivet, the work offers a vivid account of English history from the reign of King Stephen through to the death of King Edward I, blending political narrative with moral reflection. Covering the reigns of six monarchs—from Stephen to Edward I—the chronicle explores royal authority, rebellion, war, and the shifting balance between crown, church, and nobility. Trivet provides detailed insight into defining moments such as baronial conflicts, Anglo-French rivalry, and the consolidation of royal power under Edward I, whose reign he describes with particular immediacy. The Annals combines careful year-by-year reporting with thoughtful interpretation, presenting history not merely as a sequence of events but as a moral and political lesson. Ideal for readers interested in medieval history, kingship, and the origins of the English state, this chronicle remains a valuable and accessible window into the turbulent world of the Plantagenet kings.
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In January 1828 Henry Wellesley 1st Baron Cowley [aged 54] was created 1st Baron Cowley. [his wife] Georgiana Charlotte Augusta Cecil Baroness Cowley by marriage Baroness Cowley.
In 1831 [his son-in-law] Robert Grosvenor 1st Baron Ebury [aged 29] and Charlotte Arbuthnot Wellesley Baroness Ebury [aged 23] were married. She the daughter of Henry Wellesley 1st Baron Cowley [aged 57] and Charlotte Cadogan Marchioness Anglesey [aged 49]. He the son of Robert Grosvenor 1st Marquess Westminster [aged 63] and Eleanor Egerton Marchioness Westminster [aged 60].
On 10th September 1831 [his mother] Anne Hill Countess Mornington [aged 89] died at Henrietta Street Covent Garden. She was buried at Grosvenor Chapel, Mayfair.
On 23rd December 1832 [his former brother-in-law] Charles Henry Sloane 2nd Earl Cadogan [aged 83] died unmarried in Enfield [Map]. His half brother George [aged 49] succeeded 3rd Earl Cadogan, 3rd Viscount Chelsea, 5th Baron Cadogan. Honoria Blake Countess Cadogan [aged 57] by marriage Countess Cadogan.
On 26th September 1842 Richard Wellesley 1st Marquess Wellesley [aged 82] died at Kingston House Knightsbridge, Kensington. His brother William [aged 79] succeeded 3rd Earl Mornington, 3rd Viscount Wellesley of Dangan Castle. Katherine Forbes Countess Mornington [aged 81] by marriage Countess Mornington.
On 22nd February 1845 [his brother] William Wellesley aka Wellesley-Pole 3rd Earl Mornington [aged 81] died. His son [his nephew] William [aged 56] succeeded 4th Earl Mornington, 4th Viscount Wellesley of Dangan Castle. Helena Paterson Bligh Countess Mornington by marriage Countess Mornington.
On 27th April 1847 Henry Wellesley 1st Baron Cowley [aged 74] died. His son Henry [aged 42] succeeded 2nd Baron Cowley.
On 8th July 1853 [his former wife] Charlotte Cadogan Marchioness Anglesey [aged 71] died.
In 1860 [his former wife] Georgiana Charlotte Augusta Cecil Baroness Cowley died.
Great x 1 Grandfather: Henry Colley
Grandfather: Richard Colley aka Wesley 1st Baron Mornington
Great x 2 Grandfather: William Ussher of Bridgefoot
Great x 1 Grandmother: Mary Ussher
father: Garrett Wellesley 1st Earl Mornington
Grandmother: Elizabeth Sale
Henry Wellesley 1st Baron Cowley
Great x 4 Grandfather: Moyses Hill Marshall of Ulster
Great x 3 Grandfather: Arthur Hill
Great x 2 Grandfather: William Hill
Great x 1 Grandfather: Michael Hill
Grandfather: Arthur Hill aka Hill-Trevor 1st Viscount Dungannon
Great x 4 Grandfather: Edward Trevor 
Great x 3 Grandfather: John Trevor
Great x 2 Grandfather: John Trevor
Great x 1 Grandmother: Anne Trevor
mother: Anne Hill Countess Mornington