Rosa Bernhardine "Bernile" Nienau (20 April 1926 – 5 October 1943) was a German girl who became known as "the Führer's child" because of her close friendship with Adolf Hitler that lasted for six years from 1933 to 1938.

[2] In the spring of 1933, probably at the instigation of her mother, Bernile pressed to the forefront of the stream of visitors on Obersalzberg to grab Hitler's attention.

[1] Six-year-old Bernile’s bright blue eyes and blonde hair caught Hitler's attention and she was chosen to have a closer visit with the Führer.

"[4] In the Federal Archives in Berlin there are 17 letters that the girl wrote, probably with the help of her mother, between 18 January 1935 and 12 November 1939, to Hitler and his chief aide Wilhelm Brückner.

Hitler only learned of it when his personal photographer Heinrich Hoffmann complained that Bormann had forbidden him to continue publishing photos showing the Führer with "his daughter."

[7] Around May 1938, Bernile's mother Karoline was officially asked to stop any contact with party leaders and visits to Hitler's home, the Berghof.

Bernile, who learned the profession of a technical draftsman, died on 5 October 1943 at age 17 in Schwabing Hospital of spinal poliomyelitis.