Emilio Roccanera, Lord of Ventimiglia, becomes a corsair in the Spanish Main and is driven by revenge against Duke Van Guld, Governor of Maracaibo, who killed his brothers.

Emilio di Roccabruna count of Ventimiglia is fighting Van Gould who ten years before had killed his father and stolen his family properties. He is known as "Il Corsaro Nero" (The Black Corsair) and his two brothers as Il Corsaro Verde (The Green Corsair) and as Il Corsaro Rosso (The Red Corsair). But the Green Corsair and the Red Corsair are killed treacherously by Van Gould's men while the Black Corsair is entirely taken up by saving an Indian village from the Spaniards. He can save only Yara. Later on he organizes with the help of Morgan his revenge.—Baldinotto da Pistoia