Henry Cavendish, Earl of Ogle 
M, #10471, b. circa 1659, d. 1 November 1680
Henry Cavendish, Earl of Ogle|b. c 1659\nd. 1 Nov 1680|p1048.htm#i10471|Sir Henry Cavendish, 2nd Duke of Newcastle-upon-Tyne|b. 24 Jun 1630\nd. 26 Jul 1691|p10539.htm#i105382|Frances Pierrepont|b. b 1637\nd. 23 Sep 1695|p10539.htm#i105383|Sir William Cavendish, 1st Duke of Newcastle-upon-Tyne|b. 16 Dec 1593\nd. 25 Dec 1676|p1260.htm#i12596|Elizabeth Basset|b. b 1602\nd. 17 Apr 1643|p1260.htm#i12595|Hon. William Pierrepont|b. c 1608\nd. 1679|p3002.htm#i30018||||
Last Edited=29 Jan 2007
Consanguinity Index=0.8%
Henry Cavendish, Earl of Ogle was born circa 1659. He was the son of Sir Henry Cavendish, 2nd Duke of Newcastle-upon-Tyne and Frances Pierrepont. He married Lady Elizabeth Percy, daughter of Joceline Percy, 11th Earl of Northumberland and Elizabeth Wriothesley, on 27 March 1679. He died on 1 November 1680.
Henry Cavendish, Earl of Ogle gained the title of Earl of Ogle.
Henry Cavendish, Earl of Ogle gained the title of Earl of Ogle.
Thomas Thynne1 
M, #10472, b. 1648, d. 12 February 1681/82
Thomas Thynne|b. 1648\nd. 12 Feb 1681/82|p1048.htm#i10472|Sir Thomas Thynne|b. b 1627|p2451.htm#i24504|Stuarta Balquanquill||p2451.htm#i24505|Sir Thomas Thynne|b. b 1599|p2450.htm#i24496|Maria Audley||p2450.htm#i24499|Dr. Walter Balquanquill||p2451.htm#i24506||||
Last Edited=27 Mar 2004
Thomas Thynne was born in 1648.1 He was the son of Sir Thomas Thynne and Stuarta Balquanquill.1 He married Lady Elizabeth Percy, daughter of Joceline Percy, 11th Earl of Northumberland and Elizabeth Wriothesley, on 15 November 1681.1 He died on 12 February 1681/82 at Longleat, Wiltshire, England, assassinated while in his coach, it is thought, the connivance of Count Konigsmark, a Swedish nobleman.2
Thomas Thynne also went by the nick-name of 'Tom of Ten Thousand'.2 He matriculated at Christ Church College, Oxford University, Oxford, Oxfordshire, England, on 14 December 1666.3 He lived in 1670 at Longleat, Wiltshire, England.2 He has an extensive biographical entry in the Dictionary of National Biography.4

Thomas Thynne also went by the nick-name of 'Tom of Ten Thousand'.2 He matriculated at Christ Church College, Oxford University, Oxford, Oxfordshire, England, on 14 December 1666.3 He lived in 1670 at Longleat, Wiltshire, England.2 He has an extensive biographical entry in the Dictionary of National Biography.4
Citations
- [S8] Charles Mosley, editor, Burke's Peerage and Baronetage, 106th edition, 2 volumes (Crans, Switzerland: Burke's Peerage (Genealogical Books) Ltd, 1999), volume 1, page 212. Hereinafter cited as Burke's Peerage and Baronetage, 106th edition.
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume XII/2, page 586. Hereinafter cited as The Complete Peerage.
- [S18] Matthew H.C.G., editor, Dictionary of National Biography on CD-ROM (Oxford, U.K.: Oxford University Press, 1995). Hereinafter cited as Dictionary of National Biography.
- [S18] Matthew H.C.G., Dictionary of National Biography, reference "Thynne, Thomas, 1648-1682".
Charles Seymour, 6th Duke of Somerset 
M, #10473, b. 13 August 1662, d. 2 December 1748
Charles Seymour, 6th Duke of Somerset|b. 13 Aug 1662\nd. 2 Dec 1748|p1048.htm#i10473|Charles Seymour, 2nd Baron Seymour of Trowbridge|b. c 1621\nd. 25 Aug 1665|p2417.htm#i24168|Elizabeth Bennett|b. b 1644|p2418.htm#i24172|Francis Seymour, 1st Baron Seymour of Trowbridge|b. c 1590\nd. 12 Jul 1664|p10304.htm#i103037|Frances Prinne|b. b 1604|p2417.htm#i24169|Sir Henry Bennet, 1st Earl of Arlington|b. c 1620\nd. 28 Jul 1685|p10842.htm#i108413|Isabella de Nassau|b. c 1630\nd. 18 Jan 1717/18|p2967.htm#i29667|
Last Edited=29 Jun 2007
Consanguinity Index=0.0%
Charles Seymour, 6th Duke of Somerset was born on 13 August 1662. He was the son of Charles Seymour, 2nd Baron Seymour of Trowbridge and Elizabeth Bennett. He married, firstly, Lady Elizabeth Percy, daughter of Joceline Percy, 11th Earl of Northumberland and Elizabeth Wriothesley, on 30 May 1682. He married, secondly, Lady Charlotte Finch, daughter of Daniel Finch, 7th Earl of Winchilsea and Hon. Anne Hatton, on 4 February 1725/26. He died on 2 December 1748 at age 86.
Charles Seymour, 6th Duke of Somerset also went by the nick-name of 'The Proud Duke'. He gained the title of 6th Duke of Somerset.
Charles Seymour, 6th Duke of Somerset also went by the nick-name of 'The Proud Duke'. He gained the title of 6th Duke of Somerset.
Children of Charles Seymour, 6th Duke of Somerset and Lady Elizabeth Percy
- Algernon Seymour, 7th Duke of Somerset+ b. 11 Nov 1684, d. 7 Feb 1749/50
- Elizabeth Seymour b. 1685, d. 2 Apr 1734
- Catherine Seymour+ b. b 1693, d. 9 Apr 1731
- Lady Anne Seymour b. b 1709, d. 27 Nov 17221
Children of Charles Seymour, 6th Duke of Somerset and Lady Charlotte Finch
- Lady Frances Seymour+ b. 18 Jul 1728, d. 25 Jan 1761
- Lady Charlotte Seymour+ b. 21 Sep 1730, d. 15 Feb 18052
Citations
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 174. Hereinafter cited as The New Extinct Peerage.
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume I, page 365. Hereinafter cited as The Complete Peerage.
Algernon Seymour, 7th Duke of Somerset 
M, #10474, b. 11 November 1684, d. 7 February 1749/50
Algernon Seymour, 7th Duke of Somerset|b. 11 Nov 1684\nd. 7 Feb 1749/50|p1048.htm#i10474|Charles Seymour, 6th Duke of Somerset|b. 13 Aug 1662\nd. 2 Dec 1748|p1048.htm#i10473|Lady Elizabeth Percy|b. 26 Jan 1666/67\nd. 23 Nov 1722|p1047.htm#i10470|Charles Seymour, 2nd Baron Seymour of Trowbridge|b. c 1621\nd. 25 Aug 1665|p2417.htm#i24168|Elizabeth Bennett|b. b 1644|p2418.htm#i24172|Joceline Percy, 11th Earl of Northumberland|b. 4 Jul 1644\nd. 21 May 1670|p1047.htm#i10467|Elizabeth Wriothesley|d. 19 Sep 1690|p1047.htm#i10468|
Last Edited=13 Oct 2004
Consanguinity Index=0.0%
Algernon Seymour, 7th Duke of Somerset was born on 11 November 1684. He was the son of Charles Seymour, 6th Duke of Somerset and Lady Elizabeth Percy. He married Frances Thynne, daughter of Hon. Henry Thynne and Grace Strode, circa 1713. He died on 7 February 1749/50 at age 65.
Algernon Seymour, 7th Duke of Somerset gained the title of 1st Earl of Northumberland. He gained the title of 1st Earl of Egremont. He gained the title of 7th Duke of Somerset.
Algernon Seymour, 7th Duke of Somerset gained the title of 1st Earl of Northumberland. He gained the title of 1st Earl of Egremont. He gained the title of 7th Duke of Somerset.
Children of Algernon Seymour, 7th Duke of Somerset and Frances Thynne
- Elizabeth Seymour+ d. 5 Dec 17761
- George Seymour, Viscount Beauchamp b. 11 Sep 1725, d. 11 Sep 1744
Citations
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume II, page 174. Hereinafter cited as The Complete Peerage.
Hugh Percy, 1st Duke of Northumberland1 
M, #10475, b. circa 1714, d. 6 June 1786
Hugh Percy, 1st Duke of Northumberland|b. c 1714\nd. 6 Jun 1786|p1048.htm#i10475|Langdale Smithson|b. b 1698|p1055.htm#i10547||||Sir Hugh Smithson|b. b 1682|p1216.htm#i12152||||||||||
Last Edited=13 Oct 2004
Hugh Percy, 1st Duke of Northumberland was born circa 1714. He was the son of Langdale Smithson. He married Elizabeth Seymour, daughter of Algernon Seymour, 7th Duke of Somerset and Frances Thynne, on 16 July 1740. He died on 6 June 1786.
Hugh Percy, 1st Duke of Northumberland gained the title of 2nd Earl of Northumberland. He gained the title of 4th Baronet Smithson. He was baptised with the name of Hugh Smithson.1 He was created 1st Duke of Northumberland in 1766. He was created 1st Baron Lovaine [Great Britain] on 28 June 1784, with a special remainder in favour of his youngest son, Algernon.2
Hugh Percy, 1st Duke of Northumberland gained the title of 2nd Earl of Northumberland. He gained the title of 4th Baronet Smithson. He was baptised with the name of Hugh Smithson.1 He was created 1st Duke of Northumberland in 1766. He was created 1st Baron Lovaine [Great Britain] on 28 June 1784, with a special remainder in favour of his youngest son, Algernon.2
Children of Hugh Percy, 1st Duke of Northumberland and Elizabeth Seymour
- General Hugh Percy, 2nd Duke of Northumberland+ b. 14 Aug 1742, d. 10 Jul 1817
- Algernon Percy, 1st Earl of Beverley+ b. 21 Jan 1749/50, d. 21 Oct 18301
Citations
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume II, page 174. Hereinafter cited as The Complete Peerage.
- [S6] Cokayne, and others, The Complete Peerage, volume II, page 175.
Frances Thynne 
F, #10476, d. 7 July 1754
Frances Thynne|d. 7 Jul 1754|p1048.htm#i10476|Hon. Henry Thynne|b. 8 Feb 1674/75\nd. 20 Dec 1708|p2411.htm#i24107|Grace Strode|d. 3 Apr 1725|p2411.htm#i24108|Sir Thomas Thynne, 1st Viscount Weymouth|b. 1640\nd. 28 Jul 1714|p2337.htm#i23368|Frances Finch|b. b 1660\nd. 17 Apr 1712|p2411.htm#i24105|Sir George Strode||p5784.htm#i57834|Grace FitzJames||p11790.htm#i117891|
Last Edited=6 May 2008
Frances Thynne was the daughter of Hon. Henry Thynne and Grace Strode. She married Algernon Seymour, 7th Duke of Somerset, son of Charles Seymour, 6th Duke of Somerset and Lady Elizabeth Percy, circa 1713. She died on 7 July 1754.
Her married name became Seymour.
Her married name became Seymour.
Children of Frances Thynne and Algernon Seymour, 7th Duke of Somerset
- Elizabeth Seymour+ d. 5 Dec 1776
- George Seymour, Viscount Beauchamp b. 11 Sep 1725, d. 11 Sep 1744
Thomas Thynne1 
M, #10477, b. circa 1687, d. 24 April 1710
Thomas Thynne|b. c 1687\nd. 24 Apr 1710|p1048.htm#i10477|Henry Frederick Thynne|b. b 1671\nd. 1705|p1808.htm#i18074|Dorothy Philips|b. b 1671|p2412.htm#i24111|Sir Henry F. Thynne, 1st Bt.|b. 1 Mar 1615\nd. 6 Mar 1679/80|p1773.htm#i17725|Hon. Mary Coventry||p2411.htm#i24110|Francis Philips||p2412.htm#i24112||||
Last Edited=11 Jan 2007
Thomas Thynne was born circa 1687.1 He was the son of Henry Frederick Thynne and Dorothy Philips.1 He married Lady Mary Villiers, daughter of Edward Villiers, 1st Earl of Jersey and Barbara Chiffinch. He died on 24 April 1710, from smallpox.1
Thomas Thynne lived at Old Windsor, Berkshire, England.
Thomas Thynne lived at Old Windsor, Berkshire, England.
Child of Thomas Thynne and Lady Mary Villiers
- Thomas Thynne, 2nd Viscount Weymouth+ b. 21 May 1710, d. 12 Jan 1750/511
Citations
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume XII/2, page 588. Hereinafter cited as The Complete Peerage.
Lady Mary Villiers1 
F, #10478, b. before 1694, d. 17 January 1734/35
Lady Mary Villiers|b. b 1694\nd. 17 Jan 1734/35|p1048.htm#i10478|Edward Villiers, 1st Earl of Jersey|b. 1656\nd. 25 Aug 1711|p1363.htm#i13623|Barbara Chiffinch|b. b 1671\nd. a 13 Dec 1735|p2143.htm#i21422|Sir Edward Villiers|b. 15 Apr 1620\nd. 2 Jul 1689|p10562.htm#i105616|Lady Frances Howard|d. 1677|p2635.htm#i26348|William Chiffinch||p2143.htm#i21423||||
Last Edited=15 Mar 2004
Lady Mary Villiers was born before 1694. She was the daughter of Edward Villiers, 1st Earl of Jersey and Barbara Chiffinch.1 She married, firstly, Thomas Thynne, son of Henry Frederick Thynne and Dorothy Philips. She married, secondly, George Granville, Baron Lansdown of Biddeford, son of unknown Granville, in December 1711.1 She died on 17 January 1734/35.1 She was buried on 24 January 1734/35 at Longbridge Deverill, Wiltshire, England.1
Her married name became Thynne. From December 1711, her married name became Granville.1
Her married name became Thynne. From December 1711, her married name became Granville.1
Child of Lady Mary Villiers and Thomas Thynne
- Thomas Thynne, 2nd Viscount Weymouth+ b. 21 May 1710, d. 12 Jan 1750/511
Citations
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume XII/2, page 588. Hereinafter cited as The Complete Peerage.
George Seymour, Viscount Beauchamp 
M, #10479, b. 11 September 1725, d. 11 September 1744
George Seymour, Viscount Beauchamp|b. 11 Sep 1725\nd. 11 Sep 1744|p1048.htm#i10479|Algernon Seymour, 7th Duke of Somerset|b. 11 Nov 1684\nd. 7 Feb 1749/50|p1048.htm#i10474|Frances Thynne|d. 7 Jul 1754|p1048.htm#i10476|Charles Seymour, 6th Duke of Somerset|b. 13 Aug 1662\nd. 2 Dec 1748|p1048.htm#i10473|Lady Elizabeth Percy|b. 26 Jan 1666/67\nd. 23 Nov 1722|p1047.htm#i10470|Hon. Henry Thynne|b. 8 Feb 1674/75\nd. 20 Dec 1708|p2411.htm#i24107|Grace Strode|d. 3 Apr 1725|p2411.htm#i24108|
Last Edited=10 May 2003
Consanguinity Index=0.2%
George Seymour, Viscount Beauchamp was born on 11 September 1725. He was the son of Algernon Seymour, 7th Duke of Somerset and Frances Thynne. He died on 11 September 1744 at age 19, unmarried.
George Seymour, Viscount Beauchamp gained the title of Viscount Beauchamp.
George Seymour, Viscount Beauchamp gained the title of Viscount Beauchamp.
Elizabeth Seymour1 
F, #10480, d. 5 December 1776
Elizabeth Seymour|d. 5 Dec 1776|p1048.htm#i10480|Algernon Seymour, 7th Duke of Somerset|b. 11 Nov 1684\nd. 7 Feb 1749/50|p1048.htm#i10474|Frances Thynne|d. 7 Jul 1754|p1048.htm#i10476|Charles Seymour, 6th Duke of Somerset|b. 13 Aug 1662\nd. 2 Dec 1748|p1048.htm#i10473|Lady Elizabeth Percy|b. 26 Jan 1666/67\nd. 23 Nov 1722|p1047.htm#i10470|Hon. Henry Thynne|b. 8 Feb 1674/75\nd. 20 Dec 1708|p2411.htm#i24107|Grace Strode|d. 3 Apr 1725|p2411.htm#i24108|
Last Edited=6 May 2008
Consanguinity Index=0.2%
Elizabeth Seymour was the daughter of Algernon Seymour, 7th Duke of Somerset and Frances Thynne.1 She married Hugh Percy, 1st Duke of Northumberland, son of Langdale Smithson, on 16 July 1740. She died on 5 December 1776.
Elizabeth Seymour gained the title of Baroness Percy. Her married name became Smithson.
Elizabeth Seymour gained the title of Baroness Percy. Her married name became Smithson.
Children of Elizabeth Seymour and Hugh Percy, 1st Duke of Northumberland
- General Hugh Percy, 2nd Duke of Northumberland+ b. 14 Aug 1742, d. 10 Jul 1817
- Algernon Percy, 1st Earl of Beverley+ b. 21 Jan 1749/50, d. 21 Oct 18301
Citations
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume II, page 174. Hereinafter cited as The Complete Peerage.





