- Born on July 1, 1893 in Wiesbaden
- Deceased on August 28, 1987, at the age of 94 years
Parents
- Clemens von Oer (1848 - 1920), Freiherr von Oer zu Egelborg, chambellan du roi de Wurtemberg à Wiesbaden, premier lieutenant en Saxe
- Henriette de Chapeaurouge (1854 - 1939)
Family
- Married on April 24, 1919, with Max von Landsberg-Velen (1889 - 1957), Graf von Landsberg-Velen und Gemen, issuing
Dietrich (1925 - 2012)