Gaston Joseph Tissot1 
Child of Gaston Joseph Tissot and Helene Aurore di Noghera, Contessa Palatine di Noghera
- Humbert Tissot+1 b. 7 Sep 1921
- [S1015] Alexandre Tissot Demidoff, “re: Demidoff Family,” e-mail message to British and European Nobility Register, 20 August 2003 and 10 February 2004. Hereinafter cited as “re: Demidoff Family email.”
Elizabeth Courtenay1 
Her married name became Trethurffe.1
- [S37] BP2003 volume 1, page 1123. See link for full details for this source. Hereinafter cited as. [S37]
Humbert Tissot1
Child of Humbert Tissot and Marguerite Mendes y Teske
- Alexandre Tissot-Demidoff+1 b. 4 Sep 1956
- [S1015] Alexandre Tissot Demidoff, “re: Demidoff Family,” e-mail message to British and European Nobility Register, 20 August 2003 and 10 February 2004. Hereinafter cited as “re: Demidoff Family email.”
Isabel Courtenay1
Her married name became Mohun.2
Marguerite Mendes y Teske1 
From 7 April 1954, her married name became Tissot.1
Child of Marguerite Mendes y Teske and Humbert Tissot
- Alexandre Tissot-Demidoff+1 b. 4 Sep 1956
- [S1015] Alexandre Tissot Demidoff, “re: Demidoff Family,” e-mail message to British and European Nobility Register, 20 August 2003 and 10 February 2004. Hereinafter cited as “re: Demidoff Family email.”
Florence Courtenay1
Her married name became Trelawny.2
Paul Mendes1 
Child of Paul Mendes and Margarita Teske
- Marguerite Mendes y Teske+1 b. 12 Mar 1928, d. 8 Jan 1992
- [S1015] Alexandre Tissot Demidoff, “re: Demidoff Family,” e-mail message to British and European Nobility Register, 20 August 2003 and 10 February 2004. Hereinafter cited as “re: Demidoff Family email.”
Georgiana Caroline Lascelles1 
Her married name became Grenfell.
Children of Georgiana Caroline Lascelles and Charles William Grenfell
- Caroline Georgiana Grenfell+ d. 5 Mar 1881
- William Henry Grenfell, 1st and last Baron Desborough+1 b. 30 Oct 1855, d. 9 Jan 1945
- Charles Molyneux Grenfell+3 b. 3 Jun 1857, d. 15 Oct 1915
- Claude George Grenfell3 b. 20 Aug 1858, d. 24 Jan 1900
- Constance Isabella Grenfell+3 b. 13 Nov 1860, d. 14 Oct 1923
- [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 102. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 2, page 1785. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Thomas Peregrine Courtenay1 
He was Clerk of the Treasury.1
- [S37] BP2003 volume 1, page 1124. See link for full details for this source. Hereinafter cited as. [S37]
Rt. Rev. Reginald Courtenay1,2 
He held the office of Bishop of Kingston, Jamaica between 1856 and 1879.2
Children of Rt. Rev. Reginald Courtenay and Georgiana Beresford
- John Peregrine Charles Courtenay2 b. 1843
- Reginald Edward Courtenay2 b. 7 Nov 1844, d. 5 Jun 1873
- Georgiana Harriet Anne Courtenay2 b. 31 Jan 1846, d. 14 Feb 1932
- Evangeline Claudette Courtenay2 b. 22 Apr 1855
- Mabel Courtenay2 b. 24 Dec 1857, d. 4 Nov 1936
