The third daughter[2] of the Captain of the Semyonovskoe Regiment Pyotr Rimskiy–Korsakov (December 8, 1731 – 1807) from his marriage to Princess Pelageya Shcherbatova (1743 – June 24, 1783).

On September 1, 1812, as Napoleon's Army approached Moskva, Elizaveta Yankova and her children left for her Tambov Estate, Elizavetino, to return to the house that had burned down in 1815.

For a long time she lived with her unmarried daughter Kleopatra, after whose death she moved into the House of the Blagovo Family.

Elizaveta Yankova "vividly remembered all the family traditions dating back to the time of Pyotr I, and told them with amazing detail, sometimes remembering years and dates: who was married to whom, who had how many children, in a word, she was a living chronicle of the entire 18th century and half of the 19th".

Her grandson, Dmitriy Blagovo (Pimen in monasticism), immortalized his grandmother by publishing her memoirs in the magazine "Russian Herald" (1878–1880).