Russian opera diva Galina Vishnevskaya, who conquered audiences all over the world with her rich soprano, has died.
Vishnevskaya, widow of famed cellist Mstislav Rostropovich, was 86.
Vishnevskaya joined Moscow's Bolshoi Theatre in 1952 and made her Metropolitan Opera debut as Aida in 1961.
Vishnevskaya and Rostropovich frequently performed together, and used their star status in the Soviet Union to help friends in trouble.
