Men must don a tailcoat, white gloves, and black shoes.
Along with talented young athletes and academics selected as debutantes, the sons and daughters of Russia's Kremlin-connected elite have previously been picked for the exclusive event.
While the debutantes attend the ball free of charge, other guests pay up to $880 for a table at the charity event.
Russia has a long history of formal balls, which were first introduced to the country in the late 1600s by Peter the Great, who had observed them during his travels in Europe. This painting captures one of the highly formal dances in St. Petersburg in 1873.
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