Biography of Hyacinthe Gabrielle Roland Marchioness Wellesley 1766-1816
In 1766 Hyacinthe Gabrielle Roland Marchioness Wellesley was born to Pierre Roland. There were rumors her biological father was Christopher Alexander Fagan
On 22 May 1781 Garrett Wellesley 1st Earl Mornington (age 45) died at Kensington. He was buried at Grosvenor Chapel. On 22 May 1781 His son [her future husband] Richard Wellesley 1st Marquess Wellesley (age 20) succeeded 2nd Earl Mornington, 2nd Viscount Wellesley of Dangan Castle.
In 1787 [her illegitimate son] Richard Wellesley was born illegitimately to [her future husband] Richard Wellesley 1st Marquess Wellesley (age 26) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 21).
In 1788 [her illegitimate daughter] Anne Wellesley Lady Abdy was born illegitimately to [her future husband] Richard Wellesley 1st Marquess Wellesley (age 27) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 22).
On 25 Feb 1789 [her illegitimate daughter] Hyacinthe Mary Wellesley Baroness Hatherton was born illegitimately to [her future husband] Richard Wellesley 1st Marquess Wellesley (age 28) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 23).
On 07 Jan 1790 Henry Fitzroy (age 24) and [her future sister-in-law] Anne Wellesley (age 21) were married. She the daughter of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington (age 47). He a great x 3 grandson of King Charles II of England Scotland and Ireland. 
In 1791 Élisabeth Louise Vigée Le Brun (age 35). Portrait of Hyacinthe Gabrielle Roland Marchioness Wellesley (age 25).
In 1792 [her illegitimate son] Gerald Wellesley was born illegitimately to [her future husband] Richard Wellesley 1st Marquess Wellesley (age 31) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 26).
Before 29 Nov 1794 [her illegitimate son] Henry Wellesley was born illegitimately to [her future husband] Richard Wellesley 1st Marquess Wellesley (age 34) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 28).
On 29 Nov 1794 Richard Wellesley 1st Marquess Wellesley (age 34) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 28) were married at St George's Church, Hanover Square. She by marriage Countess Mornington. He the son of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington (age 52).
1796. Henry Edridge (age 28). Portrait of Hyacinthe Gabrielle Roland Marchioness Wellesley (age 30).
In 1799 [her husband] Richard Wellesley 1st Marquess Wellesley (age 38) was created 1st Marquess Wellesley. Hyacinthe Gabrielle Roland Marchioness Wellesley (age 33) by marriage Marchioness Wellesley.
On 02 Aug 1799 Charles Culling Smith (age 24) and [her sister-in-law] Anne Wellesley (age 31) were married. She the daughter of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington (age 57).
On 02 Jun 1802 [her brother-in-law] Reverend Gerald Valerian Wellesley (age 31) and Emily Maud Cadogan (age 29) were married. She the daughter of Charles Sloane Cadogan 1st Earl Cadogan (age 73) and Mary Churchill Countess Cadogan (age 44). He the son of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington (age 59).
On 03 Jul 1806 [her son-in-law] William Abdy 7th Baronet (age 27) and [her illegitimate daughter] Anne Wellesley Lady Abdy (age 18) were married at Hyde Park Corner; this is possibly Apsley House Hyde Park Corner. She by marriage Lady Abdy of Felix Hall in Kelveden in Essex. She the illegitmate daughter of Richard Wellesley 1st Marquess Wellesley (age 46) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 40).
Before 1810 [her brother-in-law] Henry Wellesley 1st Baron Cowley (age 36) and Charlotte Cadogan Marchioness Anglesey (age 28) were married. She the daughter of Charles Sloane Cadogan 1st Earl Cadogan and Mary Churchill Countess Cadogan (age 51). He the son of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington (age 67).
In Oct 1812 [her son-in-law] Edward John Walhouse aka Littleton 1st Baron Hatherton (age 21) and [her illegitimate daughter] Hyacinthe Mary Wellesley Baroness Hatherton (age 23) were married. She the illegitmate daughter of Richard Wellesley 1st Marquess Wellesley (age 52) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 46).
Around 1816. St Michael's Church Penkridge [Map]. Memorial to Hyacinthe Gabrielle Roland Marchioness Wellesley (age 50).
On 16 Jul 1816 [her son-in-law] Charles Cavendish-Bentinck (age 35) and [her illegitimate daughter] Anne Wellesley Lady Abdy (age 28) were married. She the illegitmate daughter of Richard Wellesley 1st Marquess Wellesley (age 56) and Hyacinthe Gabrielle Roland Marchioness Wellesley (age 50). He the son of William Cavendish-Bentinck 3rd Duke Portland and Dorothy Cavendish 3rd Duchess Portland.
On 05 Nov 1816 Hyacinthe Gabrielle Roland Marchioness Wellesley (age 50) died at Teddesley Hall, Penkridge.
On 29 Oct 1825 [her former husband] Richard Wellesley 1st Marquess Wellesley (age 65) and Marianne Caton Marchioness Wellesley (age 37) were married. She by marriage Marchioness Wellesley. The difference in their ages was 27 years. He the son of Garrett Wellesley 1st Earl Mornington and Anne Hill Countess Mornington (age 83).
She one of the four Caton sisters, daughters of Richard Caton (age 62), a merchant from Baltimore, the three eldest, known as the "The Three American Graces", married European husbands husbands. Only the fourth daughter Emily Caton (age 30) had children.
Marianne Caton Marchioness Wellesley (age 37) married Richard Wellesley 1st Marquess Wellesley (age 65),
Elizabeth Caton Baroness Stafford (age 35) married George William Stafford-Jerningham 8th Baron Stafford (age 54),
Louisa Catharine Caton Duchess Leeds (age 32) married firstly Felton Elwell Hervey-Bathurst 1st Baronet and secondly Francis Godolphin Osborne 7th Duke Leeds (age 27).
Emily Caton (age 30) married Consul John MacTavish (age 38).
On 26 Sep 1842 [her former husband] Richard Wellesley 1st Marquess Wellesley (age 82) died at Kingston House Knightsbridge. His brother [her former brother-in-law] William Wellesley aka Wellesley-Pole 3rd Earl Mornington (age 79) succeeded 3rd Earl Mornington, 3rd Viscount Wellesley of Dangan Castle. Katherine Forbes Countess Mornington (age 81) by marriage Countess Mornington.
