John Vaughan1 
Child of John Vaughan
- Mary Vaughan1 d. 9 Jul 1796
- [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 138. Hereinafter cited as The New Extinct Peerage.
Talbot Yelverton, 1st Earl of Sussex1 
He succeeded as the 2nd Viscount de Longueville [E., 1690] on 24 March 1703/4.1 He succeeded as the 5th Baronet Yelverton on 24 March 1703/4. He succeeded as the 16th Baron Grey, of Ruthin [E., 1325] on 24 March 1703/4.1 He was educated at Christ Church, Oxford University, Oxford, Oxfordshire, EnglandG.2 He was created 1st Earl of Sussex [Great Britain] on 26 September 1717.1 He held the office of Lord of the Bedchamber between 1722 and 1727.2 He was appointed Knight, Order of the Bath (K.B.) in 1725.2 He held the office of Deputy Earl Marshal between 1725 and 1731.2 He was appointed Privy Counsellor (P.C.) in 1727.2
Children of Talbot Yelverton, 1st Earl of Sussex and Lucy Pelham
- George Augustus Yelverton, 2nd Earl of Sussex3 b. 27 Jul 1727, d. 8 Jan 1758
- Henry Yelverton, 3rd Earl of Sussex+3 b. 7 Jul 1728, d. 22 Apr 1779
- [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 137. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 2, page 1666. See link for full details for this source. Hereinafter cited as. [S37]
- [S21] L. G. Pine, The New Extinct Peerage, page 138.
Lucy Pelham1 
From 1 November 1726, her married name became Yelverton.
Children of Lucy Pelham and Talbot Yelverton, 1st Earl of Sussex
- George Augustus Yelverton, 2nd Earl of Sussex3 b. 27 Jul 1727, d. 8 Jan 1758
- Henry Yelverton, 3rd Earl of Sussex+3 b. 7 Jul 1728, d. 22 Apr 1779
- [S37] BP2003 volume 1, page 772. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [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 138. Hereinafter cited as The New Extinct Peerage.
George Warcup1 
- [S37] BP2003 volume 1, page 774. See link for full details for this source. Hereinafter cited as. [S37]
George Augustus Yelverton, 2nd Earl of Sussex1 
He succeeded as the 17th Baron Grey, of Ruthin [E., 1325] on 27 October 1731.1 He succeeded as the 3rd Viscount de Longueville [E., 1690] on 27 October 1731.1 He succeeded as the 2nd Earl of Sussex [G.B., 1717] on 27 October 1731.1 He succeeded as the 6th Baronet Yelverton on 27 October 1731. He was educated at Westminster School, Westminster, London, EnglandG.2
- [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 138. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 2, page 1666. See link for full details for this source. Hereinafter cited as. [S37]
Sir Henry Yelverton, 2nd Bt.1 
He gained the title of 2nd Baronet Yelverton, of Easton Maudit, Northamptonshire.1 He held the office of Member of Parliament (M.P.) for Northamptonshire in 1660.3
Children of Sir Henry Yelverton, 2nd Bt. and Susan Longueville, Baroness Grey (of Ruthin)
- Christopher Yelverton1
- Frances Yelverton1 b. 1655, d. 15 May 1684
- Charles Yelverton, 14th Baron Grey (of Ruthin)1 b. 21 Aug 1657, d. 17 May 1679
- Henry Yelverton, 1st Viscount de Longueville+1 b. c 1664, d. 24 Mar 1703/4
- [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 137. Hereinafter cited as The New Extinct Peerage.
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S37] BP2003 volume 2, page 1666. See link for full details for this source. Hereinafter cited as. [S37]
Susan Longueville, Baroness Grey (of Ruthin)1 
Her married name became Yelverton.1 She succeeded as the 13th Baroness Grey, of Ruthin [E., 1325] on 17 June 1643, suo jure.1
Children of Susan Longueville, Baroness Grey (of Ruthin) and Sir Henry Yelverton, 2nd Bt.
- Christopher Yelverton1
- Frances Yelverton1 b. 1655, d. 15 May 1684
- Charles Yelverton, 14th Baron Grey (of Ruthin)1 b. 21 Aug 1657, d. 17 May 1679
- Henry Yelverton, 1st Viscount de Longueville+1 b. c 1664, d. 24 Mar 1703/4
- [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 137. Hereinafter cited as The New Extinct Peerage.
Charles Longueville, 12th Baron Grey (of Ruthin)1 
He succeeded as the 12th Baron Grey, of Ruthin [E., 1325] on 5 February 1640/41.1
Child of Charles Longueville, 12th Baron Grey (of Ruthin) and Frances Nevill
- Susan Longueville, Baroness Grey (of Ruthin)+1 d. 28 Jan 1676
- [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 137. Hereinafter cited as The New Extinct Peerage.
Frances Nevill1 
Her married name became Longueville.1
Child of Frances Nevill and Charles Longueville, 12th Baron Grey (of Ruthin)
- Susan Longueville, Baroness Grey (of Ruthin)+1 d. 28 Jan 1676
- [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 137. Hereinafter cited as The New Extinct Peerage.
Susan Grey1 
Her married name became Longueville.
Child of Susan Grey and Sir Michael Longueville
- Charles Longueville, 12th Baron Grey (of Ruthin)+1 b. 21 Apr 1612, d. 17 Jun 1643
- [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 137. Hereinafter cited as The New Extinct Peerage.
