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Anne Watson Wentworth
Daughter of: Thomas Wentworth, 1st Marquess of Rockingham and Earl of Malton
and:  
born:  
died: August 1769. Buried at Marholm
  marriage
  x 22/6/1744 William Fitzwilliam, 3rd Earl Fitzwilliam
 
    the following children were born of this union: 
1. William Fitzwilliam (4th Earl Fitzwilliam) 
2. Lady Charlotte Fitzwilliam
1st earl of Rockingham
Thomas, 1st Marquess of Rockingham, father of Anne

William Fitzwilliam

3rd Earl Fitzwilliam of Ireland and 1st Earl Fitzwilliam of England. Viscount Milton
Son of: John Fitzwilliam 2nd Earl Fitzwilliam of Ireland
and: Anne Stringer daughter of John Stringer of Sutton cum Lound, Nottinghamshire.
born: 15/1/1718
died: 10/8/1756. Buried at  Marholm
  marriage
  x 22/6/1744  Lady Anne Watson-Wentworth 
 
    the following children were born of this union: 
1. William Fitzwilliam (4th Earl Fitzwilliam) 
2. Lady Charlotte Fitzwilliam

William Fitzwilliam

4th Earl Fitzwilliam of Ireland and 2nd Earl Fitzwilliam of England.
Son of: William Wentworth Fitzwilliam (3rd Earl Fitzwilliam) 
and: Lady Anne Watson Wentworth
born: 30/5/1748 
occupation: Lord Lieutenant of Ireland. In 1795, he expressed sympathy for the cause of Catholic Emancipation and was almost immediately recalled by William Pitt's ministry for allegedly exceeding his instructions.
died: 8/2/1833  
  william
  marriage
1st: x 11/7/1770 Lady Charlotte Ponsonby
  the following children were born of this union: 
1. Charles William Wentworth Fitzwilliam. 5th Earl Fitzwilliam
  marriage
2ndly: x 21/7/1823 Louisa Molesworth
wentworth house
The 4th Earl Fitzwilliam inherited Wentworth Woodhouse from his grandfather, Thomas Wentworth, 1st Marquess of Rockingham

Charles William Wentworth Fitzwilliam

5th Earl Fitzwilliam of Ireland and 3rd Earl Fitzwilliam of England
Son of: William Wentworth Fitzwilliam (4th Earl )
and: Lady Charlotte Ponsonby
born: 4/5/1786 in London
occupation: M.P.
died: 4/10/1857 in Wentworth Woodhouse
5th earl
  marriage
  x Friday 18 July 1806  Mary Dundas 
  the following children were born of this union: 
1. William Thomas Spencer Wentworth Fitzwilliam (6th Earl Fitzwilliam) 
2. William Charles Wentworth Fitzwilliam
3. Frances Laura Wentworth Fitzwilliam
4. Charlotte Wentworth Fitzwillliam
5. Margaret Wentworth Fitzwilliam
6. Mary Wentworth Fitzwilliam
7. George Wentworth Fitzwilliam
8. Anne Wentworth Fitzwilliam
9. John Wentworth Fitzwiliam
10. Dorothy Henrietta Wentworth Fitzwilliam
11. Charles William Wentworth Fitzwilliam
12. Alfreda Elizabeth Wentworth Fitzwilliam

William Thomas Spencer Fitzwilliam

6th Earl Fitzwilliam of Ireland and 4th Earl Fitzwilliam of England.
Son of: Charles William Wentworth Fitzwilliam (5th Earl)
and: Mary Dundas
born: 12/10/1815
died: 20/2/1902
6th earl
  marriage
  x 10/9/1838 Lady Frances Harriet Douglas
  the following children were born of this union:
  William Wentworth Fitzwilliam (Viscount Milton)
1. Frances Mary Wentworth Fitzwilliam born 1847

William Wentworth Fitzwilliam

Viscount Milton
Son of: William Thomas Spencer Wentworth Fitzwilliam (6th Earl)
and: Lady Frances Harriet Douglas
born: 1839
died: 1877
viscount
  marriage
  x 1867 Laura Maria Theresa Beauclerk
  the following children were born of this union:
1. William Charles De Meuron Wentworth Fitzwilliam
2. Laura Mary Wentworth Fitzwilliam
3. Mabel Florence Harriet Wentworth Fitzwilliam
4. Theresa Evelyn Vilunza Wentworth Fitzwilliam

William Charles de Meuron Wentworth Fitzwilliam

7th Earl Fitzwilliam
Son of: William Thomas Spencer Wentworth Fitzwilliam (6th Earl)
and: Laura Maria Theresa Beauclerk
born: 25/7/1872 in Demuro, Michigan
died: 15/2/1943
7th earl
  marriage
 
  1. x Wednesday 24 June 1896 Lady Maud Frederica Dundas 
  the following children were born of this union:
1. Maud Lillian Elfreda Wentworth-Fitzwilliam
2. William Henry Laurence Peter Wentworth-Fitzwilliam (8th Earl Fitzwilliam)
3. Marjorie Joan Mary Wentworth-Fitzwilliam born 1900 married 1st Captain Grismond Phillips 2ndly Colonel Wallace Cuninghame and died 2001
4. Donatia Faith Mary Wentworth-Fitzwilliam
5. Helena Albreda Marie Gabriella Wentworth-Fitzwilliam 

William Henry Laurence Peter Wentworth Fitzwilliam

8th Earl Fitzwilliam
Son of: William Charles de Meuron Wentworth Fitzwilliam
and: Lady Maud Frederica Dundas
born:  
died: 1948
8th earl
  marriage
  Olive ('Obby') Dorothea Plunket daughter of the Bishop of Ormonde
  the following children were born of this union:
1. Juliet Wentworth Fitzwilliam married Victor Frederick Cochrane Hervey, 6th Marquess of Bristol
 

The 8th Earl Fitzwilliam was killed in a flying accident in the South of France in 1948 whilst eloping with the Countess of Hartington; Kathleen Kennedy, the eldest sister of the future President Kennedy.

With no direct male heir, Wentworth Woodhouse's contents were sold and the ownership split. From 1950, it was let to local councils as a training college, with Fitzwilliams occupying the remainder until 1979, when the 10th and last Earl died. After his death the title passed to his second cousin, once removed Eric Spencer Wentworth-FitzWilliam, 9th Earl FitzWilliam.


Charles William Wentworth Fitzwilliam


Son of: Charles William Wentworth Fitzwilliam (5th Earl)
and: Mary Dundas
born: 18/9/1826
occupation: M.P.
died: Thursday 20 December 1894
  marriage
  Anne Dundas 
  No issue

Lady Charlotte Fitzwilliam


Daughter of: William Fitzwilliam, 3rd Earl Fitzwilliam
and: Anne Watson Wentworth
born: 14/7/1746
died: 11/2/1833. Buried at Marske, Cleveland.
charlotte
Portrait by Reynolds of Lady Charlotte Dundas nee Fitzwilliam. Collection of the Marquess of Zetland, Aske.
By kind permission of the Marquess of Zetland
  marriage
  Thomas Dundas, 1st Baron Dundas x Thursday 24 May 1764 
  the following children were born of this union: 
1. Laurence Dundas 1st Earl of Zetland
2. Anne Dundas
3. Thomas Laurence Dundas
4. William Laurence Dundas
5. Charles Laurence Dundas
6. Margaret Dundas
7. Charlotte Dundas
8. Thomas Laurence Dundas
9. Frances Laura Dundas
10. George Heneage Laurence Dundas
11. Robert Laurence Dundas
12. Dorothy Dundas
13. Mary Dundas
14. Isabella Dundas
   
charlotte as a young girl
Lady Charlotte Fitzwilliam as a young girl. Collection of the Marquess of Zetland, Aske
By kind permission of the Marquess of Zetland

Frances Laura Wentworth Fitzwilliam
Daughter of: Charles William Wentworth Fitzwilliam
and: Mary Dundas
born:  22/10/1813
died: 25/3/1887 in Babworth Rectory, Nottingham
  marriage
  x 23/6/1837 William Bridgeman-Simpson the son of John Simpson and Grace Estwicke and died 1/4/1895 in Babworth Rectory Notts
  the following children were born of this union:
1. Mary Bridgeman-Simpson  born 27/7/1851

Maud Lillian Elfrida Mary Wentworth Fitzwilliam
Daughter of: William Charles De Meuron Wentworth-Fitzwilliam
and: Lady Maud Frederica Dundas
born:   Friday 19 August 1898
died:  
maud
  marriage
  x 24/3/1918 Archibald Ralph Montagu Stuart Wortley Mackenzie, 3rd Earl of Wharncliffe
  the following children were born of this union:
1. Ann Lavinia Maud Montagu-Stuart-Wortley-Mackenzie born 1919
2. Mary Diana Montagu-Stuart-Wortley-Mackenzie born 1920
3. Barbara Maureen Montagu-Stuart-Wortley-Mackenzie born 1921
4. Mary Rosemary Marie-Gabrielle Montagu-Stuart-Wortley-Mackenzie born 1930
5. Alan James Montagu-Stuart-Wortley-Mackenzie, 4th Earl of Wharncliffe born 1935

George Wentworth Fitzwilliam
Son of: Charles William Wentworth Fitzwilliam
and: Mary Dundas
born: 3/5/1817
died: 4/3/1874
  marriage
  x 1865 Alice Louisa Anson daughter of the Hon. George Anson
  the following children were born of this union:
1. Maud Wentworth Fitzwilliam
2. George Charles FitzWilliam, whose son William was the 10th and last Earl Fitzwilliam
3. Alice Mary Wentworh Fitzwilliam born 1869

Maud Wentworth Fitzwilliam
Son of: George Wentworth Fitzwilliam
and: Alice Louisa Anson
born: 27/2/1871
died: 15/7/1949
  marriage
 
  1. x Monday 20 June 1892 Cospatrick Thomas Dundas  
  the following children were born of this union:
1. John George Lawrence Dundas
2. Winifred Maud Dundas
3. Elviga Margaret Dundas