This name change occurred due to a conversion and allegiance.
Berkey Onikii (?-1301)
Onikii was supposed to be a member of the family of the Berke Khan of the Golden Horde. He befriended Ivan I Kalita who would become Grand Duke of Moscow. In 1301, he entered into Russian service, while his baptism took place by Peter the Metropolitan of Kyiv.
House Of Anichkov
The noble family would be associated with St. Petersburg for three centuries.
- “Anichkovs.” Wikipedia.
- V.V. Rummel. V.V. Golubtsov. Genealogical collection of Russian noble surnames. In 2 volumes. T. I. Anichkovs. – St. Petersburg: Edition of A. Suvorin, 1886. – pp. 35-56.