Ludwig von Westarp
Gerda von Westarp 
Her married name became von Oertzen.
Wilhelm von Oertzen 
Ursula von Westarp 
George von Westarp

He fought in the First World War.
Children of George von Westarp and Erna von Loebenstein
- Frieda von Westarp b. 1898, d. 1902
- Georg-Viktor von Westarp b. 14 Jan 1900, d. 29 Jul 1941
- Ruth von Westarp b. 1901, d. 1957
- Hans-Siegried von Westarp+ b. 1902
Erna von Loebenstein 
Her married name became von Westarp.
Children of Erna von Loebenstein and George von Westarp
- Frieda von Westarp b. 1898, d. 1902
- Georg-Viktor von Westarp b. 14 Jan 1900, d. 29 Jul 1941
- Ruth von Westarp b. 1901, d. 1957
- Hans-Siegried von Westarp+ b. 1902
Georg-Viktor von Westarp

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.
Ingeborg von Wentzel 
Her married name became von Westarp.
Hans-Siegried von Westarp
Children of Hans-Siegried von Westarp and Phyllis Hamilton Oxley
- Georg von Westarp+ b. 1934
- Christian von Westarp b. 1941
- Robert von Westarp+ b. 1944
Phyllis Hamilton Oxley 
Her married name became von Westarp.
Children of Phyllis Hamilton Oxley and Hans-Siegried von Westarp
- Georg von Westarp+ b. 1934
- Christian von Westarp b. 1941
- Robert von Westarp+ b. 1944
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
