Winifred Edith (?)1 
From before 1883, her married name became Broughton.1 From 1883, her married name became Lambart.
- [S37] BP2003 volume 1, page 722. See link for full details for this source. Hereinafter cited as. [S37]
Lady Mary Hyacinthe Lambart1 
From 6 May 1875, her married name became von Essen.
Baron Hans von Essen1 
He lived at Tidaholm, Stockholm, SwedenG.1
- [S37] BP2003 volume 1, page 722. See link for full details for this source. Hereinafter cited as. [S37]
Lady Sarah Sophia Lambart1 
From 14 July 1875, her married name became Sladen.
Children of Lady Sarah Sophia Lambart and Lt.-Col. Joseph Sladen
- Frederick William Lambart Sladen3 b. 30 May 1876, d. 10 Sep 1921
- Reginald John Lambart Sladen3 b. 24 Jul 1877, d. 15 Feb 1935
- Hugh Alfred Sladen3 b. 9 Dec 1878, d. 2 May 1962
- Major Alexander George Lambart Sladen+3 b. 17 Feb 1880, d. 1 Nov 1960
- Evelyn Mary Lambart Sladen3 b. 20 May 1882, d. 17 Jul 1930
- Charles Augustus Lambart Sladen3 b. 9 Sep 1883, d. 20 Jul 1901
- Major Algernon Ryder Lambart Sladen+3 b. 20 Sep 1885, d. 29 Nov 1947
- Sarah Elizabeth Lambart Sladen3 b. 17 Dec 1886, d. 3 Jun 1927
- Edward Lambart Sladen3 b. 29 May 1888, d. 22 Nov 1959
- Emily Lambart Sladen3 b. 20 Oct 1890, d. 12 Aug 1958
- Caroline Augusta Lambart Sladen3 b. 31 May 1892
- Anne Josephine Lambart Sladen3 b. 1894
Lt.-Col. Joseph Sladen1 
He gained the rank of Lieutenant-Colonel in the Royal Artillery.1 He lived at Ripple Court, Kent, EnglandG.1
Children of Lt.-Col. Joseph Sladen and Caroline Mary French
- Arthur French Sladen3 b. 30 Apr 1866, d. 6 Mar 1944
- Reverend Lawrence Banks Sladen2 b. 6 Apr 1867, d. 12 Nov 1945
- Sir Sampson Sladen2 b. 14 Dec 1868, d. 6 Jul 1940
- Ernest Sladen2 b. 13 Apr 1870, d. 16 Jul 1870
Children of Lt.-Col. Joseph Sladen and Lady Sarah Sophia Lambart
- Frederick William Lambart Sladen4 b. 30 May 1876, d. 10 Sep 1921
- Reginald John Lambart Sladen2 b. 24 Jul 1877, d. 15 Feb 1935
- Hugh Alfred Sladen2 b. 9 Dec 1878, d. 2 May 1962
- Major Alexander George Lambart Sladen+2 b. 17 Feb 1880, d. 1 Nov 1960
- Evelyn Mary Lambart Sladen2 b. 20 May 1882, d. 17 Jul 1930
- Charles Augustus Lambart Sladen2 b. 9 Sep 1883, d. 20 Jul 1901
- Major Algernon Ryder Lambart Sladen+2 b. 20 Sep 1885, d. 29 Nov 1947
- Sarah Elizabeth Lambart Sladen2 b. 17 Dec 1886, d. 3 Jun 1927
- Edward Lambart Sladen2 b. 29 May 1888, d. 22 Nov 1959
- Emily Lambart Sladen2 b. 20 Oct 1890, d. 12 Aug 1958
- Caroline Augusta Lambart Sladen2 b. 31 May 1892
- Anne Josephine Lambart Sladen2 b. 1894
- [S37] BP2003 volume 1, page 722. See link for full details for this source. Hereinafter cited as. [S37]
- [S35] BLG1965 volume 1, page 634. See link for full details for this source. Hereinafter cited as. [S35]
- [S35] BLG1965. [S35]
- [S47] BIFR1976 Barton, page 82. See link for full details for this source. Hereinafter cited as. [S47]
George Broughton1 
- [S37] BP2003 volume 1, page 722. See link for full details for this source. Hereinafter cited as. [S37]
Mary Sneade Olive1 
From 22 July 1863, her married name became Lambart. After her marriage, Mary Sneade Olive was styled as Countess of the County of Cavan on 16 December 1887.
Children of Mary Sneade Olive and Frederick Edward Gould Lambart, 9th Earl of the County of Cavan
- Field Marshal Frederick Rudolph Lambart, 10th Earl of the County of Cavan+4 b. 16 Oct 1865, d. 28 Aug 1946
- Lady Ellen Olive Lambart4 b. 12 Aug 1867, d. 17 Mar 1945
- Lady Maud Edith Gundreda Lambart4 b. 17 Apr 1869, d. 2 Nov 1940
- Captain Hon. Lionel John Olive Lambart+4 b. 16 Jul 1873, d. Jun 1940
- Venerable Horace Edward Samuel Sneade Lambart, 11th Earl of the County of Cavan+4 b. 25 Aug 1878, d. 9 Dec 1950
- [S37] BP2003 volume 1, page 722. See link for full details for this source. Hereinafter cited as. [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 121. Hereinafter cited as The Complete Peerage.
- [S6] Cokayne, and others, The Complete Peerage, volume III, page 120.
- [S37] BP2003. [S37]
Lt.-Col. Henry Osbert Samuel Cadogan1

He gained the rank of Lieutenant-Colonel in the Royal Welch Fusiliers.1 He fought in the First World War.2
Child of Lt.-Col. Henry Osbert Samuel Cadogan
- Colonel Edward Henry Cadogan+3 b. 11 Sep 1908, d. 1993
Captain Hon. Lionel John Olive Lambart1

He fought in the First World War, where he was mentioned in despatches.1 He gained the rank of Captain in the Royal Navy.1 He was awarded the Distinguished Service Order (D.S.O.) in 1916.1 He held the office of Justice of the Peace (J.P.) for Dorset.1
Child of Captain Hon. Lionel John Olive Lambart and Adelaide Douglas Randolph
- Lady Edith Sybil Lambart+2 b. 11 Jun 1918, d. 31 Mar 1996
Philip Augustus Champion de Crespigny
He gained the rank of Lieutenant in the Royal Navy.
