"The Daughter of the Commandant" (also known as "The Captain's Daughter") is a historical novel by Alexander Pushkin set during the Pugachev Rebellion of 1773–1775. The story follows Pyotr Grinyov, a young nobleman sent to serve at a remote fortress, where he falls in love with Masha, the commandant's daughter. Their romance is threatened by a jealous rival, Shvabrin. When the rebel leader Pugachev captures the fortress and executes the commandant, Grinyov's life is spared due to a past act of kindness. Amid war, betrayal, and loyalty, Grinyov risks everything to save Masha, ultimately proving his innocence before Empress Catherine.