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).
Gaetano Martinelli Gaetano Martinelli (? – 1802) was an Italian librettist active in the court theatres of Charles Eugene, Duke of Württemberg from 1766 to 1769 and in Lisbon as the court poet to Joseph I of Portugal and his daughter Maria I from 1769 until his death in 1802. He was one of a group of reforming Italian librettists which also included Calzabigi, Verazi, and Migliavacca, who moved away from the traditional Metastasian plot structures that had dominated opera during the first half of the 18th century. The majority of his early libretti were for comic ("opera buffa") or semi-comic ("dramma giocoso") operas.