(b Znamenskoye, nr. Smolensk, 1831; d Wiesbaden, 1894).
Russ. patroness of Tchaikovsky, whom she never met. Gave him annual grant of 6,000 roubles to devote himself to comp. This was abruptly terminated, possibly because of family pressure on her, in 1890. Their correspondence was pubd. in USSR 1934–6. 4th Sym. ded. to her. In 1880 and 1881 Debussy worked for her as a pianist.