Gillian Elizabeth Mary Walker1
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
Lady Angela Alice Maryel Drummond1 
From 26 September 1960, her married name became de Wichfeld.1
Children of Lady Angela Alice Maryel Drummond and Count Alessandro Agosto Giovanni Giacinto Barnabo Manassei di Collestate
- John Paul James Alessandro Camillo Manassei di Collestate+1 b. 16 Dec 1937, d. 10 Jan 2020
- Alessandra Mary Manassei di Collestate1 b. 27 Sep 1939
- Michael David Manassei di Collestate+1 b. 2 Apr 1947
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Count Alessandro Agosto Giovanni Giacinto Barnabo Manassei di Collestate1 
Children of Count Alessandro Agosto Giovanni Giacinto Barnabo Manassei di Collestate and Lady Angela Alice Maryel Drummond
- John Paul James Alessandro Camillo Manassei di Collestate+1 b. 16 Dec 1937, d. 10 Jan 2020
- Alessandra Mary Manassei di Collestate1 b. 27 Sep 1939
- Michael David Manassei di Collestate+1 b. 2 Apr 1947
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
John Paul James Alessandro Camillo Manassei di Collestate1 
Child of John Paul James Alessandro Camillo Manassei di Collestate and Hon. Susan Barbara Addington
- Hugo Alexander Manassei di Collestate1 b. 12 Dec 1969
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Hugo Alexander Manassei di Collestate1
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
Michael David Manassei di Collestate1
Children of Michael David Manassei di Collestate and Vanessa Bettine Jack
- Polly Tessa Manassei di Collestate1 b. 1978, d. 12 Apr 2013
- Nicholas Jason Manassei di Collestate1 b. 1980
- Clare Alexandra Manassei di Collestate1 b. 1981
- Miranda Frances Vanessa Manassei di Collestate1 b. 1985
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
Vanessa Bettine Jack1 
She graduated from University of East Anglia, Norwich, Norfolk, EnglandG, with a Bachelor of Arts (B.A.)2
Children of Vanessa Bettine Jack and Michael David Manassei di Collestate
- Polly Tessa Manassei di Collestate1 b. 1978, d. 12 Apr 2013
- Nicholas Jason Manassei di Collestate1 b. 1980
- Clare Alexandra Manassei di Collestate1 b. 1981
- Miranda Frances Vanessa Manassei di Collestate1 b. 1985
Nicholas Jason Manassei di Collestate1
- [S37] BP2003 volume 3, page 3113. See link for full details for this source. Hereinafter cited as. [S37]
Polly Tessa Manassei di Collestate1 