Huno Friedrich Peter Max von Holstein-Gottorp, Herzog von Oldenburg1 
He gained the title of Herzog von Oldenburg.1
Children of Huno Friedrich Peter Max von Holstein-Gottorp, Herzog von Oldenburg and Felicitas-Anita Gräfin Schwerin von Krosigk
Felicitas-Anita Gräfin Schwerin von Krosigk1
She gained the title of Gräfin Schwerin von Krosigk.1
Children of Felicitas-Anita Gräfin Schwerin von Krosigk and Huno Friedrich Peter Max von Holstein-Gottorp, Herzog von Oldenburg
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 209. Hereinafter cited as The Book of Kings.
Johann Friedrich Adolf von Holstein-Gottorp, Herzog von Oldenburg1
He gained the title of Herzog von Oldenburg.1
Children of Johann Friedrich Adolf von Holstein-Gottorp, Herzog von Oldenburg and Ilka Gräfin zu Ortenburg
- Eilika Helene Jutta Clementine von Holstein-Gottorp, Herzogin von Oldenburg+ b. 22 Aug 1972
- Tatiana von Holstein-Gottorp, Herzogin von Oldenburg b. 11 Nov 1974
- Constantin Nikolaus von Holstein-Gottorp, Herzog von Oldenburg b. 13 Dec 1975
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 209. Hereinafter cited as The Book of Kings.
Ilka Gräfin zu Ortenburg1
She gained the title of Gräfin zu Orternburg.1
Children of Ilka Gräfin zu Ortenburg and Johann Friedrich Adolf von Holstein-Gottorp, Herzog von Oldenburg
- Eilika Helene Jutta Clementine von Holstein-Gottorp, Herzogin von Oldenburg+ b. 22 Aug 1972
- Tatiana von Holstein-Gottorp, Herzogin von Oldenburg b. 11 Nov 1974
- Constantin Nikolaus von Holstein-Gottorp, Herzog von Oldenburg b. 13 Dec 1975
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 209. Hereinafter cited as The Book of Kings.
Udo VI Fürst zu Löwenstein-Wertheim-Freudenberg1 
He gained the title of 6th Fürst zu Löwenstein-Wertheim-Freudenberg.1
Children of Udo VI Fürst zu Löwenstein-Wertheim-Freudenberg and Margarethe Gräfin zu Castell-Castell
- Ameli Prinzessin zu Löwenstein-Wertheim-Freudenberg+1 b. 4 Mar 1923, d. 26 Mar 2016
- Alfred-Ernst VII Fürst zu Löwenstein-Wertheim-Freudenberg+ b. 19 Sep 1924
- Gertrud Prinzessin zu Löwenstein-Wertheim-Freudenberg+1 b. 24 Jan 1926, d. 4 Feb 2011
- Pauline Elisabeth Renata Luitgard Prinzessin zu Löwenstein-Wertheim-Freudenberg+ b. 9 Jun 1928
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 210. Hereinafter cited as The Book of Kings.
Margarethe Gräfin zu Castell-Castell1 
Children of Margarethe Gräfin zu Castell-Castell and Udo VI Fürst zu Löwenstein-Wertheim-Freudenberg
- Ameli Prinzessin zu Löwenstein-Wertheim-Freudenberg+1 b. 4 Mar 1923, d. 26 Mar 2016
- Alfred-Ernst VII Fürst zu Löwenstein-Wertheim-Freudenberg+ b. 19 Sep 1924
- Gertrud Prinzessin zu Löwenstein-Wertheim-Freudenberg+1 b. 24 Jan 1926, d. 4 Feb 2011
- Pauline Elisabeth Renata Luitgard Prinzessin zu Löwenstein-Wertheim-Freudenberg+ b. 9 Jun 1928
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 210. Hereinafter cited as The Book of Kings.
Helene Elisabeth Bathildis Margarete von Holstein-Gottorp, Herzogin von Oldenburg1
She gained the title of Herzogin von Oldenburg.1
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 210. Hereinafter cited as The Book of Kings.
Christian Nicholas Udo Peter von Holstein-Gottorp, Herzog von Oldenburg1 
He gained the title of Herzog von Oldenburg.1
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 210. Hereinafter cited as The Book of Kings.
Friedrich August Nicholas Udo Peter Philip von Holstein-Gottorp, Herzog von Oldenburg1
Children of Friedrich August Nicholas Udo Peter Philip von Holstein-Gottorp, Herzog von Oldenburg and Belinda Tatham Wartner
- Anastasia von Holstein-Gottorp, Herzogin von Oldenburg b. 15 Apr 1986
- Alice von Holstein-Gottorp, Herzogin von Oldenburg b. 14 Jun 1993
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 210. Hereinafter cited as The Book of Kings.
Margarete von Holstein-Gottorp, Herzogin von Oldenburg1
She gained the title of Herzogin von Oldenburg.1 She was given the name of Margarete Elizabeth Bathildis Amelie Eilika Barbara Marie-Alix Altburg von Holstein-Gottorp at birth. From 27 June 1985, her married name became von Croÿ.
Children of Margarete von Holstein-Gottorp, Herzogin von Oldenburg and Philipp Alexander Alfred Josef Prinz von Croÿ
- Alexander Friedrich-August Albrecht Ernst Prinz von Croÿ b. 6 Mar 1987
- Maximilian Johannes Alexander Englebert Prinz von Croÿ b. 31 May 1988
- Rosalie Franziska Carolyn Marie-Eugenie Prinzessin von Croÿ b. 23 Oct 1990
- [S12] C. Arnold McNaughton, The Book of Kings: A Royal Genealogy, in 3 volumes (London, U.K.: Garnstone Press, 1973), volume 1, page 210. Hereinafter cited as The Book of Kings.
