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THE ANCESTRY OF WILLIAM HENRY CAVENDISH-BENTINCK, 3RD DUKE OF PORTLAND


1  William Henry Cavendish-Bentinck, 3rd Duke of Portland
   b 14 Apr 1738
   d 30 Oct 1809, Burlington House, Westminster

 

Parents


2  William Bentinck, 2nd Duke of Portland
   b 1 Mar 1708/09
   d 1 May 1762, Westminster
   m 11 Jul 1734, Marylebone, Middlesex
3  Margaret Cavendish Harley
   b 11 Feb 1714/15, London
   d 17 Jul 1785, Bulstrode, Buckinghamshire

 

Grandparents


4  William Henry Bentinck, 1st Duke of Portland
   b 1682
   d 4 Jul 1726, St. Iago de la Vega, Jamaica
   m 9 Jun 1704, Chiswick, Middlesex
5  Elizabeth Noel
   b ca 1688
   d 19 Mar 1736/37, Westminster
6  Edward Harley, 2nd Earl of Oxford
   b 2 Jun 1689
   d 16 Jun 1741, Dover Street, London
   m 31 Aug 1713, Wimpole, Cambridgeshire
7  Henrietta Cavendish Holles
   b 4 Feb 1693/94, Clerkenwell, Middlesex
   d 9 Dec 1755, Welbeck, Nottinghamshire

 

Great-grandparents


8  Hans Willem Bentinck, 1st Earl of Portland
   b 20 Jul 1649, Diepenheim
   d 23 Nov 1709, Bulstrode
   m Feb 1677/78, The Hague
9  Anne Villiers
   b
   d 20 Nov 1688, Holland
10 Wriothesley Baptist Noel, 2nd Earl of Gainsborough
   b bef 1665
   d 21 Sep 1690
   m 30 Dec 1687, Knowle Hall, Warwickshire
11 Katherine Greville
   b
   d 7 Feb 1703/04, bur 11 Feb 1703/04, Westminster Abbey
12 Robert Harley, 1st Earl of Oxford
   b 5 Dec 1661, Covent Garden, Middlesex
   d 21 May 1724, Albemarle Street
   m 14 May 1685
13 Elizabeth Foley
   b
   d 30 Nov 1691, bur Brampton, Herefordshire
14 John Holles, 1st Duke of Newcastle
   b 9 Jan 1661/62, bap 16 Jan 1661/62, Edwinstow, Nottinghamshire
   d 15 Jul 1711, Welbeck
   m 1 Mar 1689/90
15 Margaret Cavendish
   b 22 Oct 1661
   d 24 Dec 1716, London

 

Great-great-grandparents


16 Bernhard Bentinck, Lord of Diepenheim and Drost of Deventer
   b 1597
   d 29 Jul 1668
   m
17 Anna van Bloemendaal
   b 1622
   d 30 Mar 1685
18 Sir Edward Villiers
   bap 15 Apr 1620, Westminster Abbey
   bur 2 Jul 1689, Westminster Abbey
   m
19 Frances Howard
   b 1630
   bur 27 Nov 1677, Westminster Abbey
20 Edward Noel, 1st Earl of Gainsborough
   bap 27 Jan 1640/41, Boughton Malherbe, Kent
   bur 8 Apr 1689, Exton, Rutland
   m May 1661
21 Elizabeth Wriothesley
   b
   d
22 Fulke Greville, 5th Baron Brooke
   b ca 1643
   d 22 Oct 1710, Twickenham, Middlesex
   m 12 Jan 1664/65, St. Bartholomew the Less, London
23 Sarah Dashwood
   b ca 1645
   d 20 Sep 1705, bur 3 Oct 1705, Warwick
24 Sir Edward Harley of Brampton Castle, Herefordshire
   b 21 Oct 1624, Brampton Bryan, Herefordshire
   d 8 Dec 1700, Brampton Bryan
   m 25 Feb 1660/61, Holy Trinity the Less, London
25 Abigail Stephens
   b
   d 1688
26 Thomas Foley of Witley Court, Worcestershire
   b ca 1641
   d 1 Feb 1701, Witley
   m
27 Elizabeth Ashe
   b
   d 1686
28 Gilbert Holles, 3rd Earl of Clare
   b 24 Apr 1633, Hackney, Middlesex
   d 16 Jan 1688/89, Holborn, Middlesex
   m 9 Jul 1655, St. Giles in the Fields, Middlesex
29 Grace Pierrepont
   b
   d Jul 1702
30 Henry Cavendish, 2nd Duke of Newcastle
   b 24 Jun 1630
   d 26 Jul 1691, Welbeck
   m
31 Frances Pierrepont
   b ca 1630
   d 23 Sep 1695, London


Sources

The Complete Peerage (2nd edition)
The Oxford Dictionary of National Biography
The History of Parliament, 1660-1690
The History of Parliament, 1690-1715
Joseph Lemuel Chester, ed., The Marriage, Baptismal, and Burial Registers of the Collegiate Church or Abbey of St. Peter, Westminster, Harleian Society, vol. 10 (London, 1876)
The Northampton Mercury, 10 May 1762

Caledonian Mercury, 4 Nov 1809

St. James, Clerkenwell, parish registers (available online at www.ancestry.com)

Holy Trinity the Less, London, parish registers (available online at www.ancestry.com)

Notes

Prince William is descended from the 3rd Duke of Portland through Elizabeth Angela Marguerite Bowes-Lyon, the Queen Mother.