"Even before the premiere, Ricordi was in touch with Cammarano about an alternative version, with the action removed to the Flemish- Spanish wars, under the title, "L'assedio di Arlem" [with] Federico Barbarossa...to be replaced by the Duke of Alba, etc." However, the librettist did not want to get involved and renounced his rights to the libretto 3 February 1849, but the opera was re-structured and revived in Milan 12 years later as "L'assedio di Haarlem" (based on the historic 1572 to 1575 Siege of Haarlem).