Ferdinand Josef Alois Erzherzog von Österreich 
He gained the title of Erzherzog von Österreich.
Marie von Habsburg 
Theresia Maria Josefa von Habsburg 
Desmond Patrick Trench1 
He fought in the First World War, where he was wounded.1
Children of Desmond Patrick Trench and Elfrida Mary Eliott Young
- F/Lt. John Patrick Trench1 b. 2 Dec 1918, d. 8 Mar 1943
- F/Lt. Antony Barclay Trench+1 b. 11 Nov 1919
- Pamela Joan Trench1 b. 1922, d. 15 Dec 1939
- Heather Mavis Trench+1 b. 1925
- [S8] BP1999 volume 1, page 128. See link for full details for this source. Hereinafter cited as. [S8]
Elfrida Mary Eliott Young1 
From 1916, her married name became Trench.1
Children of Elfrida Mary Eliott Young and Desmond Patrick Trench
- F/Lt. John Patrick Trench1 b. 2 Dec 1918, d. 8 Mar 1943
- F/Lt. Antony Barclay Trench+1 b. 11 Nov 1919
- Pamela Joan Trench1 b. 1922, d. 15 Dec 1939
- Heather Mavis Trench+1 b. 1925
- [S8] BP1999 volume 1, page 128. See link for full details for this source. Hereinafter cited as. [S8]
Rev. Canon Daniel Eliot Young1
Child of Rev. Canon Daniel Eliot Young
- Elfrida Mary Eliott Young+1 d. 27 Feb 1942
- [S8] BP1999 volume 1, page 128. See link for full details for this source. Hereinafter cited as. [S8]
Marie Louise d’Aspremont 
F/Lt. John Patrick Trench1

He gained the rank of Flight Lieutenant in the Royal Air Force.1 He fought in the Second World War. He was awarded the Distinguished Service Order (D.S.O.)1
- [S8] BP1999 volume 1, page 128. See link for full details for this source. Hereinafter cited as. [S8]
F/Lt. Antony Barclay Trench1
He gained the rank of Flight Lieutenant in the Royal Air Force.1 He fought in the Second World War between 1939 and 1943, where he was captured and held as a POW.1 He lived Associate Member, Institution of Electrical Engineers (A.M.I.E.E.)1 He was a consulting engineer at Ontario, CanadaG.1 He adopted Pamela Mary Trench. He adopted Anton Lawrence Wilson.2 He adopted Pepita Segre.2 He adopted Kayla Segre.2
Children of F/Lt. Antony Barclay Trench and Sheila Mary Keith
- Simon Patrick Trench1 b. 23 Jul 1946
- Pamela Mary Trench1 b. 16 Apr 1956
Children of F/Lt. Antony Barclay Trench and Doris Lynne James
Sheila Mary Keith1
From 26 December 1940, her married name became Trench.1 She adopted Pamela Mary Trench.
Children of Sheila Mary Keith and F/Lt. Antony Barclay Trench
- Simon Patrick Trench1 b. 23 Jul 1946
- Pamela Mary Trench1 b. 16 Apr 1956
- [S8] BP1999 volume 1, page 128. See link for full details for this source. Hereinafter cited as. [S8]