This was Germany : an observer at the court of Berlin : letters of Princess Marie Radziwill to General di Robilant, K.C.B., G.C.M.G., one time military attache at / Marie Radziwill.

by Radziwill, Marie
Published: London : John Murray, 1937

Library: The Wiener Library for the Study of the Holocaust & Genocide (London)

Briefe vom deutschen Kaiserhof : 1889-1915 / Fürstin Marie Radziwill. [Ausgew. u. übers. v. Paul Wiegler]

by Radziwiłł, Marie Dorothea Elisabeth de Castellane
Published: Berlin : Ullstein, 1936

Library: German Resistance Memorial Center (Berlin)