Izabel Gräfin von Hartig
Marie-Alice Gräfin von Hartig
Paul Graf von Hartig
Marie Christine Gräfin von Hartig
Marie Karoline Gräfin von Hartig 
Her married name became Hoyos.
Children of Marie Karoline Gräfin von Hartig and Count Rudolf Hoyos
- Count Ernst Hoyos b. 23 May 1922, d. 5 Sep 1944
- Count Johannes Hoyos b. 5 May 1923, d. 20 Sep 2010
- Count Heinrich Hoyos+ b. 6 Nov 1924, d. 20 Jun 1999
- Countess Eleonore Hoyos+ b. 1926
- Count Bernhard Hoyos+ b. 1931
Count Rudolf Hoyos 
Children of Count Rudolf Hoyos and Marie Karoline Gräfin von Hartig
- Count Ernst Hoyos b. 23 May 1922, d. 5 Sep 1944
- Count Johannes Hoyos b. 5 May 1923, d. 20 Sep 2010
- Count Heinrich Hoyos+ b. 6 Nov 1924, d. 20 Jun 1999
- Countess Eleonore Hoyos+ b. 1926
- Count Bernhard Hoyos+ b. 1931
Count Ernst Hoyos

He fought in the Second World War.
- [S266] World War II Unit Histories – Officers, online http://www.unithistories.com/units_index/default.asp?file=../officers/personsx. Hereinafter cited as World War II Unit Histories – Officers.
Count Johannes Hoyos 
- [S7732] Geni, online https://www.geni.com. Hereinafter cited as Geni.
Count Bernhard Hoyos
Children of Count Bernhard Hoyos and Alexandra Gräfin von Herberstein
- Caroline Gräfin Hoyos Freiin zu Stichsenstein+ b. 10 Mar 1962
- Countess Sophie Hoyos b. 1963
- Countess Alexandra Hoyos b. 10 Jul 1964
- Countess Elisabeth Hoyos b. 1966
- Count Rudolf Hoyos+ b. 1968
Alexandra Gräfin von Herberstein
Her married name became Hoyos.
Children of Alexandra Gräfin von Herberstein and Count Bernhard Hoyos
- Caroline Gräfin Hoyos Freiin zu Stichsenstein+ b. 10 Mar 1962
- Countess Sophie Hoyos b. 1963
- Countess Alexandra Hoyos b. 10 Jul 1964
- Countess Elisabeth Hoyos b. 1966
- Count Rudolf Hoyos+ b. 1968
