"Prince Igor" is an opera composed by Alexander Borodin that premiered in 1890. The story is set in the 12th century and follows Prince Igor, who leads a campaign against the invading Polovtsians. The opera explores themes of heroism, love, and the struggle for power. The work is notable for its rich orchestration and memorable melodies, including the famous Polovtsian Dances. Although Borodin did not complete the opera during his lifetime, it was finished by Vladimir Stasov and others after his death, contributing to its enduring popularity in the operatic repertoire.