Baron Albert d’Udekem d’Acoz1 
Children of Baron Albert d’Udekem d’Acoz and Alice de Kerchove
- Baron Paul d‘Udekem d’Acoz+1
- Maximilien d‘Udekem d’Acoz+1 b. 1861, d. 1921
- [S4940] Susan Douglas, “re: Grosvenor Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 7 October 2010. Hereinafter cited as “re: Grosvenor Family.”
Maximilien d’Udekem d’Acoz1 
Child of Maximilien d’Udekem d’Acoz and Maria van Eyll
- Baron Charles Joseph Marie Ghislain d‘Udekem d’Acoz+1 b. 1885, d. 1968
- [S4940] Susan Douglas, “re: Grosvenor Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 7 October 2010. Hereinafter cited as “re: Grosvenor Family.”
Baron Charles Joseph Marie Ghislain d’Udekem d’Acoz1 
Children of Baron Charles Joseph Marie Ghislain d’Udekem d’Acoz and Suzanne Marie Désirée Ghislaine Josephe van Outryve d’Ydewalle
- Comte Raoul d‘Udekem d’Acoz3 b. 21 Apr 1935, d. Mar 2023
- Comte Patrick Paul François Marie Ghislain d‘Udekem d’Acoz+1 b. 28 Apr 1936, d. 25 Sep 2008
- [S4940] Susan Douglas, “re: Grosvenor Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 7 October 2010. Hereinafter cited as “re: Grosvenor Family.”
- [S130] Wikipedia, online http;//www.wikipedia.org. Hereinafter cited as Wikipedia.
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Maria van Eyll1 
From 1884, her married name became d’Udekem d’Acoz.1
Child of Maria van Eyll and Maximilien d‘Udekem d’Acoz
- Baron Charles Joseph Marie Ghislain d‘Udekem d’Acoz+1 b. 1885, d. 1968
- [S4940] Susan Douglas, “re: Grosvenor Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 7 October 2010. Hereinafter cited as “re: Grosvenor Family.”
Suzanne Smet1 
From 1920, her married name became d’Udekem d’Acoz.1
- [S4940] Susan Douglas, “re: Grosvenor Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 7 October 2010. Hereinafter cited as “re: Grosvenor Family.”
Richard Hooker Hannay 
Janet Hamilton1 
Children of Janet Hamilton and Sir Claud Hamilton
- Claud Hamilton2
- James Hamilton2
- George Hamilton2
- Margaret Hamilton2
- Grizel Hamilton+2
- Janet Hamilton2
- Sir William Hamilton+1 b. c 1604, d. 16 May 1662
- Alexander Hamilton3 b. a 1605
- Robert Hamilton+3 b. a 1606, d. b 1657
- [S323] Sir James Balfour Paul, The Scots Peerage: founded on Wood’s edition of Sir Robert Douglas’s The Peerage of Scotland (Edinburgh, Scotland: David Douglas, 1904), volume I, page 41. Hereinafter cited as The Scots Peerage.
- [S323] Sir James Balfour Paul, The Scots Peerage, volume I, page 43.
- [S323] Sir James Balfour Paul, The Scots Peerage, volume I, page 42.
Sir Robert Hamilton of Leckprevick and Easter Greenlees1
Child of Sir Robert Hamilton of Leckprevick and Easter Greenlees
- Janet Hamilton+1 d. Sep 1613
- [S323] Sir James Balfour Paul, The Scots Peerage: founded on Wood’s edition of Sir Robert Douglas’s The Peerage of Scotland (Edinburgh, Scotland: David Douglas, 1904), volume I, page 41. Hereinafter cited as The Scots Peerage.
Elizabeth Johnston1
Her married name became Hamilton.1
Children of Elizabeth Johnston and Sir William Hamilton
- Sir James Hamilton+1 d. c Apr 1696
- William Hamilton2
- Sarah Hamilton+2
- Margaret Hamilton+2
Sir James Johnston of Johnston1
Child of Sir James Johnston of Johnston and Sarah Maxwell
- [S323] Sir James Balfour Paul, The Scots Peerage: founded on Wood’s edition of Sir Robert Douglas’s The Peerage of Scotland (Edinburgh, Scotland: David Douglas, 1904), volume I, page 41. Hereinafter cited as The Scots Peerage.
