The brothers had the surname of Anna Vladimirovna's first husband, also Jewish, Wulf Aizikovich Taborissky, a tradesman from Ashmyany, who had left the country long before both of them were born, in 1887.

In 1915, after their mother's death, Sergey and Nikolay unsuccessfully tried to reach the Petrograd Spiritual Consistory with a plea to recognize them as the children of the "Russian Orthodox person" and rid them of the "Cain's seal", citing their religious and monarchist sentiments.

There were later stories that Taboritsky participated in World War I fighting under the command of Grand Duke Michael Alexandrovich as part of the Caucasian Native Cavalry Division, but the reports can't be considered as reliable, as documented information on his activities in 1915-1919 has not been found.

Luch Sveta had republished the notorious antisemitic forgery, the Protocols of the Elders of Zion,[3] and indirectly became one of the first outside forces along with Shabelsky-Bork and Vinberg to influence the burgeoning ideology of Nazism in their support of violence against individuals deemed subhuman.

The court sentenced Taboritsky to 14 years in prison for complicity in the attempt and intentionally inflicting serious wounds on Nabokov that caused his death, though in the spring of 1927 he was released under amnesty.

Since May 1936 Taboritsky was the deputy of General Vasily Biskupsky for the Nazi-created Bureau for Russian Refugees in Germany (Vertrauensstelle für russische Flüchtlinge in Deutschland).

[1] Gleb Rahr [ru] describes Taboritsky as follows: "Dry, lean, pointed, wizened, slightly weazened type, not flowering, but fading".

After numerous petitions (including some invoking the name of Goebbels) and refusals, he received German citizenship (1938) and joined the NSDAP (1942, retroactively adopted from the date of application of 1940).

He hid the Jewish origin of his mother and attributed German roots to her, and he ascribed the Russian nobility to the fictitious father, "Vladimir Vasilievich Taboritsky".

He claimed that the assassination attempt on the "leader of Jewish democracy" and the "hater of Germany" Milyukov, for which he had served a criminal sentence, was a feat to his new homeland.