When was the Russian librettist whose work was used in the opera Dubrovsky born?
Dubrovsky (opera): Dubrovsky (Russian: "Дубровский" ) is an opera in four acts (5 scenes) Op. 58, by Eduard Nápravník, to a Russian libretto by Modest Ilyich Tchaikovsky after the novel of the same title (1832) by Alexander Pushkin.
i don't know