Out of Italian Gaetano Donizetti or Czech Bedřich Smetana, which opera composer lived and worked earlier?
Gaetano Donizetti Domenico Gaetano Maria Donizetti (] ; 29 November 1797 – 8 April 1848) was an Italian composer. Along with Gioachino Rossini and Vincenzo Bellini, Donizetti was a leading composer of the "bel canto" opera style during the first half of the nineteenth century. Donizetti's close association with the bel canto style was undoubtedly an influence on other composers such as Giuseppe Verdi (1813–1901).
Don Gregorio (opera) Don Gregorio is an 1826 opera by Gaetano Donizetti from a libretto by Jacopo Ferretti and adapted from his popular 1824 opera buffa L'ajo nell'imbarazzo ("The Tutor Embarrassed"), which had enjoyed considerable success when presented at the Teatro Valle in Rome on 4 February 1824.