William Courtenay, 1st Viscount Courtenay of Powderham Castle1 
He graduated from Magdalen College, Oxford University, Oxford, Oxfordshire, EnglandG, in 1730/31 with a Master of Arts (M.A.)1 He held the office of Member of Parliament (M.P.) (Tory) for Honiton between 1734 and 1741.1 He succeeded as the 7th Earl of Devon [E., 1553] on 10 October 1735, de jure.1 He succeeded as the 3rd Baronet Courtenay [E., 1645] on 10 October 1735.1 He was awarded the honorary degree of Doctor of Civil Law (D.C.L.) by Magdalen College, Oxford University, Oxford, Oxfordshire, EnglandG, in 1739.1 He held the office of Member of Parliament (M.P.) (Tory) for Devon between 1741 and 1762.1 He was created 1st Viscount Courtenay of Powderham Castle, co. Devon [Great Britain] on 6 May 1762.1
Children of William Courtenay, 1st Viscount Courtenay of Powderham Castle and Lady Frances Finch
- Hon. Charlotte Courtenay+2 d. 1826
- Hon. Mary Courtenay1 d. 1783
- unknown daughter Courtenay1
- Hon. Frances Courtenay+2 d. 24 Feb 1828
- William Courtenay, 2nd Viscount Courtenay of Powderham Castle+1 b. 30 Oct 1742, d. 14 Oct 1788
- Hon. Lucy Courtenay+1 b. 1748, d. 1786
Lady Frances Finch1 

by Thomas Hudson 2
Lady Frances Finch was born on 4 February 1720/21. She was the daughter of Heneage Finch, 2nd Earl of Aylesford and Mary Fisher.1 She married William Courtenay, 1st Viscount Courtenay of Powderham Castle, son of Sir William Courtenay, 2nd Bt. and Lady Anne Bertie, on 2 April 1741.1 She died on 19 December 1761 at age 40.1 She was buried on 31 December 1761 at Powderham, Devon, EnglandG.
Her married name became Courtenay.
Children of Lady Frances Finch and William Courtenay, 1st Viscount Courtenay of Powderham Castle
- Hon. Charlotte Courtenay+3 d. 1826
- Hon. Mary Courtenay1 d. 1783
- unknown daughter Courtenay1
- Hon. Frances Courtenay+1 d. 24 Feb 1828
- William Courtenay, 2nd Viscount Courtenay of Powderham Castle+1 b. 30 Oct 1742, d. 14 Oct 1788
- Hon. Lucy Courtenay+1 b. 1748, d. 1786
William Courtenay, 2nd Viscount Courtenay of Powderham Castle1 
He succeeded as the 8th Earl of Devon [E., 1553] on 16 May 1762, de jure.1 He succeeded as the 4th Baronet Courtenay [E., 1645] on 16 May 1762.1 He succeeded as the 2nd Viscount Courtenay of Powderham Castle, co. Devon [G.B., 1762] on 16 May 1762.1
Children of William Courtenay, 2nd Viscount Courtenay of Powderham Castle and Frances Clack
- Hon. Amelia Courtenay3 d. 18 Mar 1789
- Hon. Frances Courtenay+4 b. Jan 1763
- Hon. Charlotte Courtenay+5 b. 14 Feb 1764
- Hon. Isabella Courtenay1 b. 20 Jun 1765, d. 5 Mar 1783
- Hon. Elizabeth Courtenay+ b. 2 Sep 1766, d. 11 Sep 1815
- William Courtenay, 9th Earl of Devon1 b. 30 Jul 1768, d. 26 May 1835
- Hon. Lucy Courtenay+6 b. 13 Jun 1770, d. 27 Jan 1822
- Hon. Harriet Courtenay7 b. 7 Sep 1771, d. 13 Apr 1836
- Hon. Eleanor Courtenay3 b. 23 Nov 1772, d. Feb 1789
- Hon. Anne Courtenay+1 b. 2 Jul 1774, d. 6 Jan 1835
- Hon. Caroline Eustatia Courtenay+ b. 26 Mar 1775, d. 6 Mar 1851
- Hon. Matilda Jane Courtenay+ b. 6 Jul 1778, d. 1848
- Hon. Sophia Courtenay b. 25 Jan 1780
- Hon. Louisa Augusta Courtenay+8 b. 23 Dec 1781, d. 9 Feb 1823
- [S37] BP2003 volume 1, page 1124. See link for full details for this source. Hereinafter cited as. [S37]
- [S417] Chris Rooney, online unknown url, Chris Rooney (unknown location), downloaded 20 August 2010.
- [S7408] John Debrett, editor, DeBretts Peerage, Baronetage, Knightage and Companionage, 3rd Edition (London, U.K.: n.pub., 1815). Hereinafter cited as DeBretts Peerage, 1815.
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume II, page 119. Hereinafter cited as The Complete Baronetage.
- [S15] George Edward Cokayne, The Complete Baronetage, volume V, page 328.
- [S37] BP2003. [S37]
- [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 III, page 69. Hereinafter cited as The Complete Peerage.
- [S8] BP1999 volume 1, page 223. See link for full details for this source. Hereinafter cited as. [S8]
Frances Clack1 
Her married name became Courtenay. After her marriage, Frances Clack was styled as Viscountess Courtenay of Powderham Castle on 16 May 1762.
Children of Frances Clack and William Courtenay, 2nd Viscount Courtenay of Powderham Castle
- Hon. Amelia Courtenay4 d. 18 Mar 1789
- Hon. Frances Courtenay+ b. Jan 1763
- Hon. Charlotte Courtenay+ b. 14 Feb 1764
- Hon. Isabella Courtenay3 b. 20 Jun 1765, d. 5 Mar 1783
- Hon. Elizabeth Courtenay+ b. 2 Sep 1766, d. 11 Sep 1815
- William Courtenay, 9th Earl of Devon3 b. 30 Jul 1768, d. 26 May 1835
- Hon. Lucy Courtenay+ b. 13 Jun 1770, d. 27 Jan 1822
- Hon. Harriet Courtenay1 b. 7 Sep 1771, d. 13 Apr 1836
- Hon. Eleanor Courtenay4 b. 23 Nov 1772, d. Feb 1789
- Hon. Anne Courtenay+3 b. 2 Jul 1774, d. 6 Jan 1835
- Hon. Caroline Eustatia Courtenay+ b. 26 Mar 1775, d. 6 Mar 1851
- Hon. Matilda Jane Courtenay+ b. 6 Jul 1778, d. 1848
- Hon. Sophia Courtenay b. 25 Jan 1780
- Hon. Louisa Augusta Courtenay+ b. 23 Dec 1781, d. 9 Feb 1823
- [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 III, page 69. Hereinafter cited as The Complete Peerage.
- [S417] Chris Rooney, online unknown url, Chris Rooney (unknown location), downloaded 20 August 2010.
- [S37] BP2003 volume 1, page 1124. See link for full details for this source. Hereinafter cited as. [S37]
- [S7408] John Debrett, editor, DeBretts Peerage, Baronetage, Knightage and Companionage, 3rd Edition (London, U.K.: n.pub., 1815). Hereinafter cited as DeBretts Peerage, 1815.
Hon. Frances Courtenay1 
From 13 December 1779, her married name became Honywood.
Children of Hon. Frances Courtenay and Sir John Honywood, 4th Bt.
- Annabella Christiana Honywood+1 d. 4 Apr 1814
- Caroline Honywood+4
- Charlotte Dorothea Honywood3 d. 1811
- Sir John Courtenay Honywood, 5th Bt.+5 b. 1787, d. 12 Sep 1832
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume II, page 119. Hereinafter cited as The Complete Baronetage.
- [S7408] John Debrett, editor, DeBretts Peerage, Baronetage, Knightage and Companionage, 3rd Edition (London, U.K.: n.pub., 1815). Hereinafter cited as DeBretts Peerage, 1815.
- [S37] BP2003 volume 2, page 1953. See link for full details for this source. Hereinafter cited as. [S37]
- [S22] Sir Bernard Burke, C.B. LL.D., A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire, new edition (1883; reprint, Baltimore, Maryland: Genealogical Publishing Company, 1978), page 492. Hereinafter cited as Burkes Extinct Peerage.
- [S37] BP2003. [S37]
Sir John Honywood, 4th Bt.1 
He succeeded as the 4th Baronet Honywood, of Evington, co. Kent [E., 1660] on 26 June 1781.3 He held the office of Member of Parliament (M.P.) for Steyning between 1784 and 1785.3 He held the office of Member of Parliament (M.P.) for Steyning between 1788 and 1790.3 He held the office of Member of Parliament (M.P.) for Canterbury between 1790 and 1802.3 He held the office of Member of Parliament (M.P.) for Honiton between 1802 and 1806.3 He was Caroline, married Edward Temple, only s of Rev Thomas William Temple, Doctor of Divinity (D.D.) a son and two daughters): in 1807.3
Children of Sir John Honywood, 4th Bt. and Hon. Frances Courtenay
- Annabella Christiana Honywood+1 d. 4 Apr 1814
- Caroline Honywood+4
- Charlotte Dorothea Honywood3 d. 1811
- Sir John Courtenay Honywood, 5th Bt.+2 b. 1787, d. 12 Sep 1832
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume II, page 119. Hereinafter cited as The Complete Baronetage.
- [S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S22] Sir Bernard Burke, C.B. LL.D., A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire, new edition (1883; reprint, Baltimore, Maryland: Genealogical Publishing Company, 1978), page 492. Hereinafter cited as Burkes Extinct Peerage.
Hon. Elizabeth Courtenay1 
From 7 June 1788, her married name became Somerset.
Children of Hon. Elizabeth Courtenay and General Lord Charles Henry Somerset
- Elizabeth Somerset b. Oct 1790, d. 1827
- Mary Georgiana Somerset3 b. Feb 1793, d. 19 May 1856
- Lt.-Gen. Sir Henry Somerset+1 b. 30 Dec 1794, d. 15 Feb 1862
- Charlotte Augusta Somerset3 b. 2 Jan 1799, d. 17 Mar 1864
- Reverend Villiers Henry Plantagenet Somerset+4 b. 12 Feb 1803, d. 3 Feb 1855
- [S8] BP1999 volume 1, page 221. See link for full details for this source. Hereinafter cited as. [S8]
- [S7408] John Debrett, editor, DeBretts Peerage, Baronetage, Knightage and Companionage, 3rd Edition (London, U.K.: n.pub., 1815). Hereinafter cited as DeBretts Peerage, 1815.
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S8] BP1999. [S8]
General Lord Robert Edward Henry Somerset1 
He gained the rank of General.1 He gained the rank of Colonel in the 4th Dragoons.1 He was appointed Knight Grand Cross, Order of the Bath (G.C.B.)1
Children of General Lord Robert Edward Henry Somerset and Hon. Louisa Augusta Courtenay
- Robert Henry Somerset3 b. 1806, d. 1807
- Louisa Isabella Somerset3 b. 1807, d. 1888
- Frances Caroline Somerset+4 b. 1808, d. 28 May 1890
- Blanche Somerset5 b. 1811, d. 1879
- Matilda Elizabeth Somerset+3 b. 1815, d. 3 Apr 1905
- Lt.-Gen. Edward Arthur Somerset+6 b. 21 Feb 1817, d. c 6 Mar 1886
- Georgiana Emily Somerset7 b. 1819
- Augustus Charles Stapleton Somerset3 b. 1821, d. 1854
- [S8] BP1999 volume 1, page 223. See link for full details for this source. Hereinafter cited as. [S8]
- [S417] Chris Rooney, online unknown url, Chris Rooney (unknown location), downloaded 20 August 2010.
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S35] BLG1965 volume 1, page 145. See link for full details for this source. Hereinafter cited as. [S35]
- [S7177] Bob Janes, “re: Bosanquet Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 June 2014. Hereinafter cited as “re: Bosanquet Family.”
- [S8] BP1999. [S8]
- [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 291. Hereinafter cited as The New Extinct Peerage.
Hon. Matilda Jane Courtenay1 
Her married name became Locke.1
Children of Hon. Matilda Jane Courtenay and John Locke
- Matilda Henrietta Elizabeth Locke1 b. 1802, d. 1877
- Reverend Charles George John Courtneay Locke1 b. 1804, d. 1848
- [S7177] Bob Janes, “re: Bosanquet Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 27 June 2014. Hereinafter cited as “re: Bosanquet Family.”
- [S7408] John Debrett, editor, DeBretts Peerage, Baronetage, Knightage and Companionage, 3rd Edition (London, U.K.: n.pub., 1815). Hereinafter cited as DeBretts Peerage, 1815.
Margaret Deincourt1
Children of Margaret Deincourt and Robert de Willoughby, 1st Lord Willoughby de Eresby
- Joan de Willoughby+1 d. 16 Jul 1350
- John de Willoughby, 2nd Lord Willoughby de Eresby+2 b. 6 Jan 1303/4, d. 13 Jun 1349
- William de Willoughby2 b. c 1306, d. bt 28 May 1345 – 13 Jul 1346
- [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 150. Hereinafter cited as The Complete Peerage.
- [S37] BP2003 volume 3, page 4194. See link for full details for this source. Hereinafter cited as. [S37]