Algernon George Percy, 6th Duke of Northumberland1 
He was educated at Eton College, Windsor, Berkshire, England.1 He held the office of Member of Parliament (M.P.) (Conservative) for Beeralston between 1831 and 1832.1 He retired from the military in 1837, with the rank of Captain, late of the Grenadier Guards.1 He held the office of Member of Parliament (M.P.) (Conservative) for North Northumberland between 1852 and 1865.1 He held the office of a Lord of the Admiralty between 1858 and 1859.1 He was appointed Privy Counsellor (P.C.) in 1859.1 He was Vice-President of the Board of Trade between March 1859 and June 1859.1 He succeeded as the 6th Earl Percy [G.B., 1766] on 21 August 1867.1 He succeeded as the 6th Duke of Northumberland [G.B., 1766] on 21 August 1867.1 He succeeded as the 3rd Earl of Beverley, co. York [G.B., 1790] on 21 August 1867.1 He succeeded as the 9th Baronet Smithson, of Stanwick, co. Yorks [E., 1660] on 21 August 1867.1 He succeeded as the 4th Lord Lovaine, Baron of Alnwick, co. Northumberland [G.B., 1784] on 21 August 1867.1 He graduated from St. John’s College, Cambridge University, Cambridge, Cambridgeshire, England, in 1870 with a Doctor of Law (LL.D.)1 He held the office of Lord-Lieutenant of Northumberland between 1877 and 1899.1 He held the office of Lord Privy Seal between 1878 and 1880.1 He was president of the Royal National Lifeboat Institute.1 He held the office of Justice of the Peace (J.P.) for Surrey.1 He held the office of Deputy Lieutenant (D.L.) of Surrey.1 He graduated from Durham University, Durham, County Durham, England, in 1882 with a Doctor of Civil Law (D.C.L.)1 He was appointed Fellow, Society of Antiquaries (F.S.A.) in 1883.1 He was president of the Royal Achaeolgical Institute between 1883 and 1892.1 He was appointed Knight, Order of the Garter (K.G.) in 1885.1
Children of Algernon George Percy, 6th Duke of Northumberland and Louisa Drummond
- Henry George Percy, 7th Duke of Northumberland+1 b. 29 May 1846, d. 14 May 1918
- Lord Algernon Malcolm Arthur Percy+1 b. 2 Oct 1851, d. 28 Dec 1933
Louisa Drummond1 
From 26 May 1845, her married name became Percy. After her marriage, Louisa Drummond was styled as Duchess of Northumberland on 21 August 1867.
Children of Louisa Drummond and Algernon George Percy, 6th Duke of Northumberland
- Henry George Percy, 7th Duke of Northumberland+2 b. 29 May 1846, d. 14 May 1918
- Lord Algernon Malcolm Arthur Percy+2 b. 2 Oct 1851, d. 28 Dec 1933
Sir Adam Johnstone of Johnstone1 
He lived at Johnstone, ScotlandG.1
Children of Sir Adam Johnstone of Johnstone
- James Johnstone of Johnstone+1 b. b 1486, d. Aug 1524
- William Johnstone1 b. a 1486, d. a 1519
- [S8] BP1999 volume 1, page 80. See link for full details for this source. Hereinafter cited as. [S8]
Marion Scott1 
Her married name became Carruthers.1 Her married name became Johnstone.1
- [S8] BP1999 volume 1, page 80. See link for full details for this source. Hereinafter cited as. [S8]
Archibald Carruthers, Younger1
He lived at Mouswald, Dumfries-shire, ScotlandG.1
- [S8] BP1999 volume 1, page 80. See link for full details for this source. Hereinafter cited as. [S8]
William Johnstone1 
- [S8] BP1999 volume 1, page 80. See link for full details for this source. Hereinafter cited as. [S8]
Henry Percy, 2nd Earl of Northumberland1

He was appointed Knight on 19 May 1426.1 He held the office of Governor of Berwick and Warden of the Eastern March in 1440.1 He was commissioner to negotiate with the Scots in 1451.1 He succeeded as the 2nd Earl of Northumberland [E., 1416] on 22 May 1455.1 He held the office of Justiciar of the forest beyond Trent in 1459.1 He fought in the Battle of Wakefield on 30 December 1460.1 He fought in the Battle of Towton on 29 March 1461.4 On 4 November 1461 he was posthumously forfeited, with his honours forfeited.1
Children of Henry Percy, 2nd Earl of Northumberland and Eleanor de Poynings, Baroness de Poynings
- Lady Anne Percy+5
- Lady Margaret Percy+4
- Lady Elizabeth Percy+6
- Lady Eleanor Percy1
- Henry Percy, 3rd Earl of Northumberland+1 b. c 1449, d. 28 Apr 1489
- [S37] BP2003 volume 2, page 2940. See link for full details for this source. Hereinafter cited as. [S37]
- [S125] Richard Glanville-Brown, online <e-mail address>, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), downloaded 17 August 2005.
- [S37] BP2003. [S37]
- [S1545] Mitchell Adams, “re: West Ancestors,” e-mail message to BENR, 6 December 2005 – 19 June 2009. Hereinafter cited as “re: West Ancestors.”
- [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 243. Hereinafter cited as The Complete Peerage.
- [S5991] Burke John and John Bernard Burke, The Royal Families of England, Scotland, and Wales, with their descendants, sovereigns and subjects (London: E. Churton, 1851), volume II, pedigree LXXVII. Hereinafter cited as The Royal Families.
Eleanor de Poynings, Baroness de Poynings1 
She gained the title of Baroness de Poynings. From before 25 June 1435, her married name became Percy. After her marriage, Eleanor de Poynings, Baroness de Poynings was styled as Countess of Northumberland on 22 May 1455.
Children of Eleanor de Poynings, Baroness de Poynings and Henry Percy, 2nd Earl of Northumberland
- Lady Anne Percy+4
- Lady Margaret Percy+5
- Lady Elizabeth Percy+6
- Lady Eleanor Percy3
- Henry Percy, 3rd Earl of Northumberland+3 b. c 1449, d. 28 Apr 1489
- [S37] BP2003 volume 2, page 1666. See link for full details for this source. Hereinafter cited as. [S37]
- [S125] Richard Glanville-Brown, online <e-mail address>, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), downloaded 17 August 2005.
- [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 VI, page 621. Hereinafter cited as The Complete Peerage.
- [S1545] Mitchell Adams, “re: West Ancestors,” e-mail message to BENR, 6 December 2005 – 19 June 2009. Hereinafter cited as “re: West Ancestors.”
- [S5991] Burke John and John Bernard Burke, The Royal Families of England, Scotland, and Wales, with their descendants, sovereigns and subjects (London: E. Churton, 1851), volume II, pedigree LXXVII. Hereinafter cited as The Royal Families.
James Johnstone of Johnstone, younger1 
He lived at Johnstone, ScotlandG.1
Child of James Johnstone of Johnstone, younger
- Sir Adam Johnstone of Johnstone+1 d. b 2 Nov 1509
- [S8] BP1999 volume 1, page 80. See link for full details for this source. Hereinafter cited as. [S8]
Lady Maud Herbert1 
After her marriage, Lady Maud Herbert was styled as Countess of Northumberland circa 1476. From circa 1476, her married name became Percy.
Children of Lady Maud Herbert and Henry Percy, 3rd Earl of Northumberland
- Lady Eleanor Percy+5 d. 13 Feb 1530/31
- Sir William Percy4
- Reverend Alan Percy4 d. May 1560
- Jocelyn Percy+4 d. 1532
- Lady Elizabeth Percy6
- Henry Algernon Percy, 4th Earl of Northumberland+4 b. 13 Jan 1477/78, d. 19 May 1527
- Lady Anne Percy+1 b. b 27 Jul 1485, d. fr 4 Mar 1551/52 – 14 Dec 1552
- [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 250. Hereinafter cited as The Complete Peerage.
- [S125] Richard Glanville-Brown, online <e-mail address>, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), downloaded 17 August 2005.
- [S6] Cokayne, and others, The Complete Peerage, volume X, page 401.
- [S37] BP2003 volume 2, page 2940. See link for full details for this source. Hereinafter cited as. [S37]
- [S6] Cokayne, and others, The Complete Peerage, volume II, page 391.
- [S37] BP2003. [S37]