Dorothea von Salviati's father-in-law was born on what date?
Dorothea von Salviati Dorothea von Salviati (1907–1972), was the wife of Prince Wilhelm of Prussia, the eldest son of Crown Prince Wilhelm, the eldest son and heir of the last German Emperor, Wilhelm II.
Otto Christian Archibald von Bismarck Otto Christian Archibald, Prince von Bismarck (25 September 1897 in Schönhausen, Brandenburg – 24 December 1975) was a German politician and diplomat, and the Prince of Bismarck from 1904 to his death.