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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
   bap 13 Jul 1689, Exton, Rutland
   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 ca 1663
   d 21 Sep 1690
   m 30 Dec 1687, Knowle Hall, Warwickshire
11 Katherine Greville
   b 4 May 1666
   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 ca 1668
   d 30 Nov 1691, bur Brampton, Herefordshire
14 John Holles, 1st Duke of Newcastle
   b 9 Jan 1661/62, bap 16 Jan 1661/62, Edwinstowe, 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 ca 1654
19 Frances Howard
   bap 21 Dec 1630, St Martin in the Fields, Westminster
   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
   m May 1661
21 Elizabeth Wriothesley
   b
   bur 19 Feb 1679, Titchfield, Hampshire
22 Fulke Greville, 5th Baron Brooke
   bap 29 Sep 1643, London
   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
   d 8 Dec 1700, Brampton Bryan
   m 25 Feb 1660/61, Holy Trinity the Less, London
25 Abigail Stephens
   bap 25 Sep 1628, Eastington, Gloucestershire
   bur 1688, Brampton Bryan
26 Thomas Foley of Witley Court, Worcestershire
   b ca 1641
   d 1 Feb 1701, Witley
   m
27 Elizabeth Ashe
   b
   bur 6 Jan 1686, Great Witley
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
   bur Aug 1702, St Giles in the Fields
30 Henry Cavendish, 2nd Duke of Newcastle
   b 24 Jun 1630
   d 26 Jul 1691, Welbeck
   m
31 Frances Pierrepont
   b 1 Sep 1630, bap 13 Oct 1630, Tong, Shropshire
   d 23 Sep 1695, London


Sources

The Complete Peerage (2nd edition)
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 (online at www.ancestry.com)

St Paul, Covent Garden, parish registers (online at www.ancestry.com)

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

St Martin in the Fields, Westminster, parish registers (online at www.ancestry.com)

Warwick parish registers (online at www.ancestry.com)

Eastington parish registers (online at www.ancestry.com)

St Giles in the Fields parish registers (online at www.ancestry.com)

St Andrew, Holborn, parish registers (online at www.ancestry.com)

Exton parish registers (online at www.findmypast.co.uk)

“Marriage Licences in the Diocesan Registry at Worcester”, The Genealogist, 7(1883):98
Hampshire Burials (online at www.findmypast.co.uk)

Herefordshire Burials (online at www.findmypast.co.uk)

National Burial Index (online at www.findmypast.co.uk)

Notes

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