Marino Faliero is a tragedia lirica, or tragic opera, in three acts by Gaetano Donizetti. Giovanni Emanuele Bidéra wrote the Italian libretto, with revisions by Agostino Ruffini, after Casimir Delavigne's play. It is inspired by Lord Byron's drama Marino Faliero and based on the life of Marino Faliero, the Venetian Doge. Rossini had commissioned both Donizetti and Vincenzo Bellini to write operas for the Théâtre-Italien in Paris. Bellini's contribution was the hugely successful I puritani. Donizetti's opera, which premiered on 12 March 1835 was not nearly as much of a success. However, it marked Donizetti's first opera to have its premiere in Paris.