Spain, early 19th century, during the Peninsular War. The commander of the Royalist Aragon troops, Count di Luna, is obsessed with Leonora, a young noblewoman in the queen’s service, who does not return his love. Outside the royal residence, his soldiers keep watch at night. They have heard an unknown troubadour serenading Leonora, and the jealous count is determined to capture and punish him. To keep his troops awake, the captain, Ferrando, recounts the terrible story of a gypsy woman who was burned at the stake years ago for bewitching the count’s infant brother. The gypsy’s daughter then took revenge by kidnapping the boy and throwing him into the flames where her mother had died. The charred skeleton of a baby was discovered there, and di Luna’s father died of grief soon after. The gypsy’s daughter disappeared without a trace, but di Luna has sworn to find her.