Hon. Alice Elizabeth Dillon1 
From 26 July 1866, her married name became Congreve.
Children of Hon. Alice Elizabeth Dillon and Ambrose Congreve
- Caroline Mabel Congreve2 d. 1895
- Eleanor Augusta Congreve2
- Violet Jane Congreve2
- Major John Congreve+2 b. 9 Feb 1872, d. 1957
- Ambrose Congreve2 b. 30 Nov 1875
- Leopold Hugh Congreve2 b. 10 Sep 1877
- [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 76. Hereinafter cited as The New Extinct Peerage.
- [S47] BIFR1976 See link for full details for this source. Hereinafter cited as. [S47]
Ambrose Congreve1 
He gained the rank of Lieutenant in the 2nd Life Guards.2 In 1871 High Sheriff.2 He held the office of Deputy Lieutenant (D.L.) of County Waterford.2 He held the office of Justice of the Peace (J.P.) for County Waterford.2 He lived at Mount Congreve, County Waterford, IrelandG.2
Children of Ambrose Congreve and Hon. Alice Elizabeth Dillon
- Caroline Mabel Congreve3 d. 1895
- Eleanor Augusta Congreve3
- Violet Jane Congreve3
- Major John Congreve+3 b. 9 Feb 1872, d. 1957
- Ambrose Congreve3 b. 30 Nov 1875
- Leopold Hugh Congreve3 b. 10 Sep 1877
- [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 76. Hereinafter cited as The New Extinct Peerage.
- [S47] BIFR1976 page 265. See link for full details for this source. Hereinafter cited as. [S47]
- [S47] BIFR1976. [S47]
Hon. Katherine Charlotte Dillon1 
- [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 76. Hereinafter cited as The New Extinct Peerage.
Hon. Elizabeth Octavia Dillon1 
Her married name became Ellis-Nanney.
- [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 76. Hereinafter cited as The New Extinct Peerage.
Sir Hugh Ellis-Nanney, 1st Bt.1
He gained the title of 1st Baronet Ellis-Nanney, of Gwynfryn, co. Carnarvon.
- [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 76. Hereinafter cited as The New Extinct Peerage.
Hon. Charles FitzRoy 
Hon. Charles FitzRoy was born on 3 January 1904.2 He was the son of Charles Henry FitzRoy, 4th Baron Southampton and Lady Hilda Mary Dundas.2 He married, firstly, Margaret Drake, daughter of Herbert Mackworth Drake, on 22 June 1927.2 He married, secondly, Phyllis Joan Lloyd, daughter of Francis Archibald Lloyd, on 12 January 1940.2 He and Phyllis Joan Lloyd were divorced in 1944.2 He married, thirdly, Rachel Christine Zaman, daughter of Charles Zaman, on 3 February 1951.2 He died in 1989.2
He was educated at Harrow School, Harrow, London, England.2 He gained the rank of 2nd Lieutenant in the Royal Horse Guards and Pioneer Corps.2 He succeeded as the 5th Baron Southampton, of Southampton, Hampshire [G.B., 1780] on 7 December 1958.2 On 16 March 1964 he disclaimed his peerage for life.2
Child of Hon. Charles FitzRoy and Margaret Drake
- Charles James FitzRoy, 6th Baron Southampton+2 b. 12 Aug 1928, d. 10 Jan 2015
Margaret Drake1 
Her married name became FitzRoy.
Child of Margaret Drake and Hon. Charles FitzRoy
- Charles James FitzRoy, 6th Baron Southampton+1 b. 12 Aug 1928, d. 10 Jan 2015
- [S37] BP2003 volume 3, page 3687. See link for full details for this source. Hereinafter cited as. [S37]
Herbert Mackworth Drake
Child of Herbert Mackworth Drake
- Margaret Drake+ d. 3 Feb 1931
- [S37] BP2003 volume 3, page 3687. See link for full details for this source. Hereinafter cited as. [S37]
Charles James FitzRoy, 6th Baron Southampton 
He was educated at Stowe School, Buckingham, Buckinghamshire, England.1 He succeeded as the 6th Baron Southampton, of Southampton, Hampshire [G.B., 1780] in 1989.2 He lived in 2003 at Stone Cross House, Chagford, Devon, England.1
Children of Charles James FitzRoy, 6th Baron Southampton and Pamela Anne Henniker
- Hon. Geraldine Anne FitzRoy+2 b. 31 Dec 1951
- Hon. Charles FitzRoy2 b. 18 Jan 1954, d. 15 Oct 1975
- Edward Charles FitzRoy, 7th Baron Southampton+2 b. 8 Jul 1955
Children of Charles James FitzRoy, 6th Baron Southampton and Alma Pasquale
- Hon. Charles James FitzRoy2 b. 8 Jun 1998
- Hon. Isabelle Elidia Margaret FitzRoy2 b. 7 Dec 1999
Pamela Anne Henniker
Her married name became Fitzroy. After her marriage, Pamela Anne Henniker was styled as Baroness Southampton in 1989.
Children of Pamela Anne Henniker and Charles James FitzRoy, 6th Baron Southampton
- Hon. Geraldine Anne FitzRoy+2 b. 31 Dec 1951
- Hon. Charles FitzRoy2 b. 18 Jan 1954, d. 15 Oct 1975
- Edward Charles FitzRoy, 7th Baron Southampton+2 b. 8 Jul 1955
