Genealogy website maker
Father:
- Constantine I Oldenburg (*1868 - †1923)
Mother:
- Sophie of Prussia (*1870 - †1932)
Siblings:
- Child 5 (*? - †?)
- George II Oldenburg (*1890 - †1947)
- Alexander I Oldenburg (*1893 - †1920)
- Helen of Greece (*1896 - †1982)
- Child 6 (*1913 - †?)
Wife:
- Frederica of Hanover Hanover (*1917 - †1981)
Children:
- Sophia of Greece Oldenburg (*1938)
- Constantine II Oldenburg (*1940)
- Irene of Greece Oldenburg (*1942)