Gaetano Donizetti. Domenico Gaetano Maria Donizetti[a] (29 November 1797 – 8 April 1848) was an Italian composer, best known for his almost 70 operas. Along with Gioachino Rossini and Vincenzo Bellini, he was a leading composer of the bel canto opera style during the first half of the nineteenth century and a probable influence on other ...