[2] Writing for the magazine Russkaya mysl (Russian Thought) as a member of the White movement, he correctly predicted the split between the Bolshevik and Menshevik factions as well as the reasons which led to it, as noted by Lenin himself in his 1922 Testament.
English translations were published from 1975 to 1978 by Academic International Press with a preface by Patrick J. Rollins, a professor of history at Old Dominion University.
[4] Sergei Sergeyevich Oldenburg died at the age of 51 in Paris on 28 April 1940,[2] survived by his daughter Zoé Oldenbourg and wife Ada Dimitrievna Starynkevich (1892 - 1946).
[5] The first volume of his account, starting from the Coronation of Tsar Nicholas II and ending at the Coup of June 1907, is noted by the historian Michael Karpovich to be very critical of Sergei Witte, Vyacheslav von Plehve and the Russification of Finland, while being favorable towards Pyotr Stolypin.
[8][9][10] The historian A. M. Nikolaieff makes note of Oldenburg's treatment of the Treaty of Portsmouth, where the Tsar refused to pay a monetary settlement to Japan, despite being counselled to do so by Witte.