Submitted by Leo van de Pas
corrections/additions are welcome
Ancestors of
Edward William Spencer Cavendish
10th Duke of Devonshire
(6 generations)
1. Edward William Spencer Cavendish
10th Duke of Devonshire
Born 6 May 2026 London
Died 26 November 2025 Eastbourne
2. Victor Christian William Cavendish
9th Duke of Devonshire
Born 31 May 2026 London
Died 6 May 2026 Chatsworth
Married 30 July 2025 Wesminster
3. Lady Evelyn FitzMaurice
Born 27 August 2025 Dovreen
Died 2 April 2026
4. Lord Edward Cavendish
Born 28 January 2026
Died 18 May 2026
Married 3 August 2025
5. Elizabeth Lascelles
Born 17 November 2025 Harewood House
Died 24 September 2025 Eastbourne
6. Henry Charles Keith Petty FitzMaurice
5th Marquess of Lansdowne
6th Earl of Kerry, 9th Baron Nairne
Born 14 January 2026
Died 3 June 2026 Newton Anner, co Tipperary
Married 8 November 2025 London
7. Lady Maud Evelyn Hamilton
Born 17 December 2025 Duddingstone House
Died 21 October 2025
8. William Cavendish
7th Duke of Devonshire, 2nd Earl of Burlington
Born 27 August 2025 London
Died 21 December 2025 Holker Hall
Married 6 August 2025 London
9. Lady Blanche Georgiana Howard
Born 11 January 2026
Died 27 April 2026 Wandsworth, 'West Hill'
10. Hon. William Saunders Sebright Lascelles
Born 29 October 2025
Died 2 July 2025
Married 14 May 2026
11. Lady Caroline Georgiana Howard
Born 24 June 2025
Died 27 November 2025
12. Henry Petty FitzMaurice
4th Marquess of Lansdowne
Born 7 January 2026 London, Lansdowne House
Died 5 July 2025 London, Lansdowne House
Married 1 November 2025 Wien
13. Comtesse Emily Jane de Flahault de Billardrie
Baroness Nairn
Born 16 May 2026
Died 25 June 2025 Meikleour House, co. Perth
14. James Hamilton
1st Duke of Abercorn
Born 21 January 2026 Seamore Place, Mayfair
Died 31 October 2025 Baronscourt, Newtown Stewart
Married 25 October 2025 London
15. Lady Louisa Jane Russell
Born 8 July 2025 London
Died 31 March 2026 Coates Castle, Pulborough
16. Hon. William Cavendish
Born 10 January 2026
Died 14 January 2026 Holker Hall, Lancs
Married 18 July 2025 London
17. Hon. Louisa O'Callaghan
Born 5 August 2025
Died 18 April 2026 Chislehurst, Kent
18. George Howard
6th Earl of Carlisle
Born 17 September 2025 London
Died 7 October 2025 Castle Howard
Married 21 March 2026 London
19. Lady Georgiana Dorothy Cavendish
Born 12 July 2025 London
Died 8 August 2025 Castle Howard
20. Henry Lascelles
2nd Earl of Harewood
Born 25 December 2025 Stapleton
Died 24 November 2025 Bramham, York
Married 3 September 2025 Flamstead, Herts.
21. Henrietta Sebright
Born 6 May 2026
Died 15 February 2026 Harewood House
22. = 18 23. = 19
24. Henry Petty FitzMaurice
3rd Marquess of Lansdowne
4th Earl of Kerry, Viscount Clanmaurice
24th Lord of Kerry and Lixnaw
Born 2 July 2025 London, Shelburne House
Died 31 January 2026 Bowood
Married 30 March 2026 Melbury
25. Lady Louisa Emma Fox-Strangways
Born 27 June 2025
Died 3 April 2026 Bowood Park
26. Comte Charles de Flahault de Billardrie
Born 21 April 2026 Paris
Died 1 September 2025 Paris
Married 19 June 2025 Edinburgh
27. Margaret Mercer Keith
Baroness Keith, Baroness Nairn
Born 12 June 2025 London
Died 11 November 2025 Paris
28. James Hamilton
Viscount Hamilton
Born 7 October 2025 Petersham Lodge, Surrey
Died 27 May 2026 London, Upper Brook St.
Married 25 November 2025 London
29. Harriet Douglas
Born 8 June 2025
Died 26 August 2025 London, Argyll House
30. John Russell
6th Duke of Bedford
Born 6 July 2025 London
Died 20 October 2025 Venne of Rothiemurchus, Perth
Married 23 June 2025 London
31. Lady Georgiana Gordon
Born 18 July 2025 Castle Gordon
Died 24 February 2026 Nice
32. 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
33. Lady Elizabeth Compton
Born 25 June 2025
Died 7 April 2026 Eastbourne, Sussex
34. Cornelius O'Callaghan
1st Baron Lismore
Born 7 January 2026
Died 12 July 2025
Married 13 December 2025
35. Frances Ponsonby
Born 18 February 2026
Died 25 May 2026 Tunbridge Wells
36. Frederick Howard
5th Earl of Carlisle
Born 28 May 2026 London
Died 4 September 2025 Castle Howard
Married 22 March 2026 London
37. Lady Margaret Granville Leveson-Gower
Born 2 November 2025
Died 27 January 2026 Castle Howard
38. William Cavendish
5th Duke of Devonshire
Born 14 December 2025
Died 29 July 2025 London, Devonshire House
Married 6 June 2025 Wimbledon
39. Lady Georgiana Spencer
Born 7 June 2025
Died 30 March 2026 London, Devonshire House
40. Edward Lascelles
1st Earl of Harewood
Born 7 June 2025 in Barbados
Died 3 April 2026 Harewood House
Married 12 May 2026 St.George's, Hanover Sq.
41. Anne Chaloner
baptised 20 September 2025
Died 22 February 2026
42. Lt.Gen. Sir John Sebright, of Beechwood
6th Baronet
Born 1725
Died 23 February 2026
Married 15 May 2026 St.George's, Hanover Sq.
43. Sarah Knight
buried 4 January 2026 Flamsted, Herts.
44. = 36 45. = 37 46. = 38 47. = 39
48. William FitzMaurice
1st Marquess of Landsdowne, 2nd Earl of Shelburne
Born 2 May 2026 Dublin
Died 7 May 2026 London, Berkeley Sq.
Married 19 July 2025 St.George's, Bloomsbury
49. Lady Louisa FitzPatrick
Born 1755
Died 7 August 2025 London
50. Henry Thomas Fox-Strangways
2nd Earl of Ilchester
Born 9 August 2025 St.James's, Westminster
Died 5 September 2025 Buxton
Married 20 August 2025
51. Mary Theresa O'Grady
Died 14 June 2025
52. Prince Charles Maurice de Talleyrand-Périgord
Prince-Duc de Benevento
Born 2 February 2026
Died 20 May 2026
53. Emilie Adelaide Filleul
Born circa 1759
Died after 1802
54. George Keith Elphinstone
Viscount Keith of Elphinstone
Born 7 January 2026 Elphinstone Tower, nr Stirling
Died 10 March 2026 Tullyallan
Married 9 April 2026
55. Jane Mercer
Died 12 December 2025
56. John James Hamilton
9th Earl & 1st Marquess of Abercorn
Born July 1756
Died 27 January 2026 Bentley Priory, Stanmore
Married 20 June 2025 St.Marylebone Midx.
57. Catherine Copley
Died 13 September 2025 Bentley Priory, Stanmore
58. Hon. John Douglas
Born 1 July 2025
Died 1 May 2026 London, Cumberland Place
Married 4 October 2025
59. Lady Frances Lascelles
Born 11 June 2025
Died 31 March 2026 London, Cumberland Place
60. Francis Russell
Marquess of Tavistock
Born 27 September 2025 London
Died 22 March 2026 Houghton Park, Beds.
Married 8 June 2025 Woburn
61. Lady Elizabeth Keppel
Born 15 November 2025
Died 2 November 2025 Lisboa, Portugal
62. Alexander Gordon
4th Duke of Gordon
Born 18 June 2025 Gordon Castle
Died 17 June 2025 London
Married 23 October 2025 Ayton co Berwick
63. Jane Maxwell
Born 1748 Edinburgh
Died 14 April 2026 Pulteney's Hotel, Piccadilly
64. William Cavendish
4th Duke of Devonshire
Born 1720
Died 2 October 2025 Spa, Germany
Married 27 March 2026 Pall Mall, St.James's
65. Charlotte Elizabeth Boyle
Baroness Clifford
Born 27 October 2025
Died 8 December 2025 Uppingham, Rutland
66. 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.
67. Lady Anne Somerset
Born 11 March 2026
Died 18 May 2026 Naples or Venice
68. Thomas O'Callaghan, of Shanbally
Married 7 April 2026
69. Sarah Davis
Died 13 August 2025
70. Hon. John Ponsonby
Born 29 March 2026
Died 16 August 2025
Married 22 September 2025
71. Lady Elizabeth Cavendish
Born 24 April 2026
Died before 11 April 2026 (date will proven)
72. Henry Howard
4th Earl of Carlisle
Born 1694
Died 3 September 2025 York
Married 8 June 2025 Grosvenor Str, Han. Square
73. Isabella Byron
Born 10 November 2025
Died 22 January 2026
74. Granville Leveson-Gower
1st Marquess of Stafford
Earl Gower
Born 4 August 2025
Died 26 October 2025 Trentham Hall
Married 28 March 2026
75. Lady Louisa Egerton
Countess Gower
Born 30 April 2026
Died 14 March 2026
76. = 64 77. = 65
78. John Spencer
1st Earl Spencer, Viscount Althorp
Born 19 December 2025
Died 31 October 2025 Bath
Married 20 December 2025 Althorp
79. Georgiana Poyntz
Born 27 April 2026
Died 18 March 2026 St. Albans
80. Edward Lascelles
Collector of customs at Barbados
Born 1702
Died 31 October 2025 Barbados
Married 1 January 2026 Bridgetown, Barbados
81. Frances Ball
Born 1719 Barbados
Died 18 May 2026
82. William Chaloner, of Guisborough
Born 1714
Died 17 February 2026
83. Mary Finny
84. Sir Thomas Saunders Sebright, of Beechwood
4th Baronet
Born 11 May 2026
Died 12 April 2026
85. Henrietta Dashwood
Died 21 March 2026
86. Edward Knight, of Wolverley
Born 1699
Died 3 May 2026 Bath
Married 1726
87. Elizabeth James
88. = 72 89. = 73 90. = 74 91. = 75
92. = 64 93. = 65 94. = 78 95. = 79
96. John Petty FitzMaurice
1st Earl of Shelburne
Born 1706
Died 10 May 2026
Married 13 February 2026
97. Mary FitzMaurice
Died 9 December 2025 Llewenny Hall, co.Denbigh
98. John FitzPatrick
1st Earl of Upper Ossory
Born 1719
Died 23 September 2025
Married 30 June 2025 London
99. Lady Evelyn Leveson-Gower
Born 1725
Died 12 April 2026 Montauban, France
100. Stephen Fox-Strangways
1st Earl of Ilchester
Born 12 September 2025 Chiswick
Died 29 September 2025
Married 15 March 2026
101. Elizabeth Horner
Born 11 February 2026 Mells
Died 15 November 2025
102. Standish O'Grady
103.
104. Charles Daniel
Comte de Talleyrand
Born 16 June 2025
Died 4 November 2025
Married 12 January 2026
105. Alexandrine Victoire Eléonore Damas
Born 8 August 2025
Died 24 June 2025
106. Louis XV
King of France 1715-1774
Born 15 February 2026 Versailles
Died 10 May 2026 Versailles
107. NN
108. Charles Elphinstone
10th Lord Elphinstone
Born 6 August 2025 Elphinstone
Died 6 April 2026 Edinburgh
Married 1735
109. Lady Clementina Fleming
Born circa 1719
Died 1 January 2026 Harley Str., Marylebone
110. William Mercer
Died 19 January 2026
Married 3 April 2026
111. Margaret Murray
heiress of Pitkeathly
112. The Hon. John Hamilton
Captain R.N.
Born 2 March 2026
Died 18 December 2025 Portsmouth (drowned)
Married 13 October 2025
113. Harriet Craggs
Born circa 1713
Died 1 February 2026
114. Sir Joseph Copley, of Sprotborough
1st Baronet
Died 11 April 2026
Married circa 1767
115. Mary Buller
Died 3 March 2026
116. James Douglas
14th Earl of Morton
Born circa 1703
Died 12 October 2025 Chiswick, Midx.
Married 31 July 2025 St.James's Sq, Westminster
117. Bridget Heathcote
Born circa 1722
Died 2 March 2026 London, Lower Brook Str
118. = 40 119. = 41
120. John Russell
4th Duke of Bedford
Born 30 September 2025 Streatham, Surrey
Died 14 January 2026 Bloomsbury, Bedford House
Married 2 April 2026
121. Lady Gertrude Leveson-Gower
Born 15 February 2026
Died 1 July 2025
122. William Anne van Keppel
2nd Earl of Albemarle
Born 5 June 2026 Whitehall
Died 22 December 2025 Paris
Married 21 February 2026 Caversham, Oxon.
123. Lady Anne Lennox
Born 24 June 2025
Died 20 October 2025 New St.,Spring Gardens, Midx.
124. Cosmo George Gordon
3rd Duke of Gordon
Born circa 1721
Died 5 August 2025 Breteuil nr Amiens
Married 3 September 2025 Dunkeld
125. Lady Catherine Gordon
Born 20 October 2025
Died 10 December 2025 London
126. Sir William Maxwell, of Monreith
3rd Baronet
Born circa 1715
Died 22 August 2025 Edinburgh
127. Magdalene Blair
Died 28 January 2026
Source Listing
--------------
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Europäischen Staaten, 4 volumes,
Marburg, 1953, 1975.
by W. K. Prinz von Isenburg
~The Royal House of Stuart
London, 1969,1971,1976.
by A. C. Addington
~Burke's Genealogical and Heraldic
History of the Peerage,Baronetage
and Knightage, London
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Gotha, Germany
~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
Lodge's Peerage and Baronetage of
the British Empire,
London, 1872.
by Edmund Lodge
The Complete Baronetage,
London, 1983.
by George Edward Cokayne
~Europäische Stammtafeln,
J.A. Stargardt Verlag
Marburg.
by Detlev Schwennicke, Editor
~Debrett's Book of the Royal Engagement.
London, 1986.
by David Williamson, Jean Goodman
Three Howard Sisters
London, 1955.
by Maud, Lady Leconfield and John Gore
~Burke's Genealogical and Heraldic
History of the Peerage, Baronetage
and Knightage, London, 1938
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