Polly Elizabeth Hermione Mostyn1,2
- [S1090] Chloe Mostyn, “re: Hermione and Jan Mostyn,” e-mail message to British and European Nobility Register, 3 May 2004. Hereinafter cited as “re: Hermione and Jan Mostyn.”
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
Megan Myfanwy Joan Elizabeth Mostyn1,2,3
- [S1090] Chloe Mostyn, “re: Hermione and Jan Mostyn,” e-mail message to British and European Nobility Register, 3 May 2004. Hereinafter cited as “re: Hermione and Jan Mostyn.”
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S37] BP2003 volume 2, page 2795. See link for full details for this source. Hereinafter cited as. [S37]
Harry Edward Llewelyn Mostyn1,2
- [S1090] Chloe Mostyn, “re: Hermione and Jan Mostyn,” e-mail message to British and European Nobility Register, 3 May 2004. Hereinafter cited as “re: Hermione and Jan Mostyn.”
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
Elizabeth Catherine Bernadette Lunn1
From 1971, her married name became Mostyn.2
Children of Elizabeth Catherine Bernadette Lunn and Paul Mostyn
- Theresa Antoinette Mostyn2 b. 23 May 1973
- Olivia Mary Mostyn2 b. 1977
Theresa Antoinette Mostyn1
Olivia Mary Mostyn1
Guy IV de Châtillon, Comte de Saint-Pol1 
Children of Guy IV de Châtillon, Comte de Saint-Pol and Matilde de Brabant
- Béatrice de Châtillon+1 d. 1304
- Jacques de Châtillon, Seigneur de Leuze et de Condé+2 b. 1256, d. 1302
- Hugues VI de Châtillon-sur-Marne, Comte de Blois et de Dunois+2 b. 9 Apr 1258, d. 1307
- Jeanne de Châtillon2 b. 1260
- Guy V de Châtillon, Comte de Saint-Pol+3 b. c 1265, d. 6 Apr 1317
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
- [S8569] Ranulph Fiennes, Agincourt, My family, the battle and the fight for France (London: Hodder & Stoughton, 2014). Hereinafter cited as Agincourt.
- [S1916] Tim Boyle, “re: Boyle Family,” e-mail message to BENR, 16 September 2006. Hereinafter cited as “re: Boyle Family.”
Jean, Comte d’Eu et Guines1

He gained the title of Comte de Guines.1 He gained the title of Comte d’Eu.1 He fought in the Flemings Battle of Courtrai in 1302.1
Children of Jean, Comte d’Eu et Guines and Jeanne de Guînes
- Raoul, Comte d’Eu et Guines+1 d. 18 Jan 1344
- Margaret d‘Eu1
- [S8] BP1999 volume 1, page 227. See link for full details for this source. Hereinafter cited as. [S8]
Jeanne de Guînes1 
Children of Jeanne de Guînes and Jean, Comte d’Eu et Guines
- Raoul, Comte d’Eu et Guines+1 d. 18 Jan 1344
- Margaret d‘Eu1
