| Baron Feyo Schelto Sixma van Heemstra |
| Baron Feyo Schelto Sixma van Heemstra | |
| B: | 4 Sep 1916 |
| Den Haag | |
| D: | 13 Jul 1994 |
| Heerenveen | |
| Barones Philippina Roberta Sixma van Heemstra | |
| B: | 30 Jan 1918 |
| Den Haag | |
| D: | 20 Oct 2001 |
| Hengelo | |
| Schelte Feijo Sixma van Heemstra |
| Schelte Feijo Sixma van Heemstra | |
| B: | Abt 1957 |
| D: | 5 Feb 1990 |
| Jan Willem Sixma van Heemstra | |
| B: | 4 Apr 1959 |
| Fijnaart en Heijningen | |
| Baron Hector Livius (Hako) Sixma van Heemstra | |
| B: | 30 May 1921 |
| Sassenheim | |
| D: | 7 Dec 2001 |
| Zutphen | |
| Barones Christine Carina van Dedem |
| Barones Christine Carina van Dedem | |
| B: | 28 Apr 1932 |
| Jakarta, West-Java, Indonesië | |
| M: | 21 Jan 1956 |
| Den Haag | |
| D: | 25 Apr 1996 |
| Deventer | |
| Baron Tjalling Ulbo Sixma van Heemstra |
| Baron Tjalling Ulbo Sixma van Heemstra | |
| B: | 29 Jul 1924 |
| Sassenheim | |
| D: | 10 Aug 2012 |
| Lonay, Zwitserland | |
|
| Gravin Johanna Arnolda Bernhardine Schimmelpenninck | |
| B: | 21 Feb 1889 |
| Diepenheim | |
| D: | 24-1-19711971 |
| Hengelo | |
| Baron Cornelis Schelto Sixma van Heemstra | |
| B: | 7 Aug 1826 |
| Leeuwarden | |
| D: | 28 Dec 1859 |
| Emden | |