Born in
Munich, Stephanie von Bismarck-Schönhausen is the only child and daughter of Andreas Herbert Alexander Graf von Bismarck-Schönhausen (
Berlin,
Province of Brandenburg,
Free State of Prussia, 14 February 1941) by his second wife (m.
St. Moritz, 31 July 1975) Charlotte Kinberg (
Stockholm, 24 September 1951), a
Swedish interior architect with partial
Dutch/
German ancestry. A member of the
Bismarck family, she is the great-great-granddaughter of Chancellor
Otto, Prince of Bismarck, and great-granddaughter of Foreign Secretary
Herbert, Prince of Bismarck. She is also a twice descendant of
Robert Whitehead, the inventor of the
torpedo, through her grandfather, the Austrian diplomat
Alexander, Count of Hoyos. Through her grandmother Edmée de Loys-Chandieu (1892–1945), wife of Alexander Hoyos, she is a descendant of Swiss and Alsatian families, particularly the de Pourtalès family. She has two older half-sisters on her father's side. Karl-Theodor zu Guttenberg resigned as
German Minister of Defence due to the
extensive plagiarism in his doctoral dissertation, and the whole family moved to the United States thereafter. After almost ten years in the United States, Bismarck-Schönhausen returned to Germany. In September 2023, it was revealed that Bismarck-Schönhausen and her husband had been separated since winter 2022–2023. Following the official finalization of the divorce in April 2025, Stephanie discontinued the use of the name zu Guttenberg and reverted to her birth name, Bismarck-Schönhausen. == Podcast — 'How Do We Manage?' ==