Submitted by Leo van de Pas
corrections/additions are welcome
Ancestors of
William Cavendish, 7th Duke of Devonshire
(6 generations)
1. William Cavendish
7th Duke of Devonshire, 2nd Earl of Burlington
Born 27 August 2025 London
Died 21 December 2025 Holker Hall
2. Hon. William Cavendish
Born 10 January 2026
Died 14 January 2026 Holker Hall, Lancs
Married 18 July 2025 London
3. Hon. Louisa O'Callaghan
Born 5 August 2025
Died 18 April 2026 Chislehurst, Kent
4. Lord George Augustus Henry Cavendish
1st Earl of Burlington
Baron Cavendish of Keighley
Born 21 March 2026
Died 9 May 2026 London, Burlington House
Married 27 February 2026 London
5. Lady Elizabeth Compton
Born 25 June 2025
Died 7 April 2026 Eastbourne, Sussex
6. Cornelius O'Callaghan
1st Baron Lismore
Born 7 January 2026
Died 12 July 2025
Married 13 December 2025
7. Frances Ponsonby
Born 18 February 2026
Died 25 May 2026 Tunbridge Wells
8. William Cavendish
4th Duke of Devonshire
Born 1720
Died 2 October 2025 Spa, Germany
Married 27 March 2026 Pall Mall, St.James's
9. Charlotte Elizabeth Boyle
Baroness Clifford
Born 27 October 2025
Died 8 December 2025 Uppingham, Rutland
10. Charles Compton
7th Earl of Northampton
Born 22 July 2025
Died 18 October 2025 Lyons, France
Married 13 September 2025 Audley Chapel St.George's Han.
11. Lady Anne Somerset
Born 11 March 2026
Died 18 May 2026 Naples or Venice
12. Thomas O'Callaghan, of Shanbally
Married 7 April 2026
13. Sarah Davis
Died 13 August 2025
14. Hon. John Ponsonby
Born 29 March 2026
Died 16 August 2025
Married 22 September 2025
15. Lady Elizabeth Cavendish
Born 24 April 2026
Died before 11 April 2026 (date will proven)
16. William Cavendish
3rd Duke of Devonshire
Born 26 September 2025
Died 5 December 2025
Married 27 March 2026
17. Catherine Hoskins
Died 8 May 2026
18. Richard Boyle
4th Earl of Cork, 3rd Earl of Burlington
Born 25 April 2026
Died 3 December 2025 Chiswick
Married 21 March 2026
19. Lady Dorothy Savile
Born 13 September 2025
Died 21 September 2025
20. Hon. Charles Compton
Born 30 January 2026
Died 20 November 2025
Married circa 13 August 2025
21. Mary Lucy
baptised 9 November 2025 St.Andrews, Holborn
22. Charles Noel Somerset
4th Duke of Beaufort
Born 12 September 2025
Died 28 October 2025
Married 1 May 2026 St.George's, Hanover Sq
23. Elizabeth Berkeley
Born 1719
Died 8 April 2026 London, Hanover Sq.
24. Cornelius O'Callaghan, of Shanbally
Died 1761
25. Maria Jolly
Died 6 June 2025
26. John Davis, of Carrickfergus
Died 12 March 2026
Married 10 April 2026
27. Hon. Anne Caulfeild
28. Brabazon Ponsonby
1st Earl of Bessborough, 2nd Viscount Duncannon
Born 1679
Died 4 July 2025 Bessborough
29. Sarah Margetson
Died 21 May 2026
30. = 16 31. = 17
32. William Cavendish
2nd Duke of Devonshire
Born 1672
Died 4 June 2026 London, Devonshire House
Married 21 June 2025 Southampton House
33. Lady Rachel Russell
Born January 1674
Died 28 December 2025
34. John Hoskyns, of Oxted, Surrey
Died May 1717
Married 11 December 2025
35. Catherine Hale, of Kings Walden
Born 15 September 2025
Died 5 March 2026
36. Charles Boyle
3rd Earl of Cork, 2nd Earl of Burlington
Born before 1674
Died 9 February 2026 Chiswick, Midx.
Married 26 January 2026
37. Juliana Noel
Born 19 May 2026
Died 17 October 2025 Pall Mall, Midx.
38. William Savile
2nd Marquess of Halifax
Born 1665
Died 31 August 2025
Married 2 April 2026 Burley-on-the-Hill, Rutland
39. Lady Mary Finch
baptised 18 May 2026 Kensington
Died 19 September 2025 London, St. James's Sq
40. George Compton
4th Earl of Northampton
Born 18 October 2025
Died 13 April 2026 Bloomsbury Sq.
Married 9 May 2026
41. Jane Fox
Died 11 July 2025
42. Sir Berkeley Lucy, of Facombe
3rd Baronet
Born circa 1672
Died 19 November 2025
43. Catharine Cotton
buried 22 June 2025 Facombe
44. Henry Somerset
2nd Duke of Beaufort
Born 2 April 2026 Castle of Monmouth
Died 24 May 2026 Badminton
Married 26 February 2026 Chapel Royal, St.James's
45. Lady Rachel Noel
Died 13 September 2025
46. John Symes Berkeley, of Stoke Gifford
Born 1 February 2026
Died 11 December 2025 Bath
Married 21 February 2026 Chelsea College Chapel
47. Elizabeth Norborne
Born 26 March 2026
Died 16 November 2025
48.
49.
50. Robert Jolly
51.
52.
53.
54. William Caulfeild
2nd Viscount Charlemont
Died 21 July 2025 College Green, Dublin
Married 11 July 2025
55. Anne Margetson
Died 1729
56. William Ponsonby
1st Viscount Duncannon
Born 1659
Died 17 November 2025
57. Mary Moore
Born 1661
Died 26 May 2026
58. James/John Margetson
Died 1691 Limerick (in battle)
59. Hon. Alice Caulfeild
Born circa 1660
Died 7 October 2025 Bath, Somerset
60. = 32 61. = 33 62. = 34 63. = 35
64. William Cavendish
4th Earl & 1st Duke of Devonshire
Born 25 January 2026
Died 18 August 2025 London, Devonshire House
Married 26 October 2025 Kilkenny Castle, co Tipperary
65. Lady Mary Butler
Born 1646
Died 31 July 2025
66. William Russell
Lord Russell
Born 29 September 2025
Died 21 July 2025 Lincoln Inn Field (beheaded)
Married 31 July 2025 Titchfield, Hants
67. Lady Rachel Wriothesley
Born 1637
Died 29 September 2025 Bloomsbury
68. Charles Hoskyns, of Oxted, Surrey
Born 1603
Died 1657
69. Anne Hale, of Kings Walden
Born 1609
Died 1651
70. William Hale, of Kings Walden, Herts.
Born 1633
Died 25 May 2026
71. Mary Elwes, of Roxby
Born 1650
Died 28 July 2025
72. Charles Boyle
Viscount Dungarvan
baptised 12 September 2025 The Savoy, London
Died 12 October 2025 Londesborough
Married 7 May 2026
73. Lady Jane Seymour
Born 6 July 2025
Died 23 November 2025
74. Hon. Henry Noel, of Luffenham
Died 21 September 2025
75. Elizabeth Wale
Died 11 January 2026
76. George Savile
1st Marquis of Halifax
Born 11 November 2025 Thornhill
Died 5 April 2026
Married 29 December 2025 London
77. Lady Dorothy Spencer
Died 16 December 2025 Lincoln's Inn Fields
78. Daniel Finch
2nd Earl of Nottingham, 7th Earl of Winchilsea
Born 2 July 2025
Died 1 January 2026 Burley-on-the-Hill
Married 16 June 2025 Chapel of Leighs, Essex
79. Lady Essex Rich
Born 1652
Died 23 March 2026 London
80. James Compton
3rd Earl of Northampton
Born 19 August 2025
Died 15 December 2025 Castle Ashby
Married circa 1664
81. Hon. Mary Noel
Died 22 August 2025
82. Sir Stephen Fox
Born 27 March 2026
Died 28 October 2025
83. Elizabeth Whittle
Died August 1696
84. Sir Kingsmill Lucy, of Facombe
2nd Baronet
Born circa 1649
buried 20 September 2025 Facombe
Married 14 May 2026 St.James's, Clerkenwell
85. Lady Theophila Berkeley
Born 1650
Died January 1706 / 1707
86. Charles Cotton
87. Isabella Hutchinson
88. Charles Somerset
Marquess of Worcester
Born December 1660 St.Martin's-in-the-Fields
Died 13 July 2025 in Wales (coach accident)
Married 5 June 2026 Wanstead, Essex
89. Rebecca Child
baptised May 1670 St.Botolph's, London
Died 17 July 2025
90. Wriothesley Baptist Noel
2nd Earl of Gainsborough
Born before 1665
Died 21 September 2025
Married 30 December 2025 Knowle Hall,Warwickshire
91. Hon. Catherine Greville
Died 7 February 2026
92. Richard Berkeley, of Stoke Gifford
Died January 1670
93. Elizabeth Symms
94. Walter Norborne, of Calne, Wilts.
95. Frances Bacon
96.
97.
98.
99.
100.
101.
102.
103.
104.
105.
106.
107.
108. William Caulfeild
1st Viscount Charlemont, 5th Baron Charlemont
Died April 1671
Married 1653
109. Hon. Sarah Moore
110. Dr. James Margetson
Archbishop of Armagh
Born 1600 Drighlington, Yorkshire
Died 28 August 2025 Dublin
111. Anne Bennett
112. Sir John Ponsonby, of Hale
and of Bessborough
Born 1608
Died 1668 or 1678
113. Elizabeth Folliott
114. Hon. Randal Moore, of Ardee
115. Lady Jane Brabazon
116. = 110 117. = 111 118. = 108 119. = 109
120. = 64 121. = 65 122. = 66 123. = 67
124. = 68 125. = 69 126. = 70 127. = 71
Source Listing
--------------
~Stammtafeln zur Geschichte der
Europäischen Staaten, 4 volumes,
Marburg, 1953, 1975.
by W. K. Prinz von Isenburg
A Genealogical History of the dormant,
abeyant,forfeited and extinct peerages
of the British Empire, London, 1866
by Sir Bernard Burke
~Burke's Genealogical and Heraldic
History of the Peerage,Baronetage
and Knightage, London
~Genealogisches Handbuch des Adels
Fürstliche Häuser
The Complete Peerage
1936
by H.A.Doubleday & Lord Howard de Walden
The Lineage and Ancestry of
H.R.H. Prince Charles, Prince of Wales
Edinburgh, 1977.
by Gerald Paget
The Complete Baronetage,
London, 1983.
by George Edward Cokayne
~Debrett's Book of the Royal Engagement.
London, 1986.
by David Williamson, Jean Goodman
~Burke's Genealogical and Heraldic
History of the Peerage, Baronetage
and Knightage, London, 1938
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