French composer Jules (Émile Frédéric) Massenet (1842-1912) produced hugely popular operas during the late 19th and early 20th centuries.
His melodies made him well known as being a great talent of his time.
Christoph Willibald Ritter von Gluck (1714-1787) was another operatic composer, but from the early classical period.
Gluck wrote eight operas for the Parisian stages and Iphigénie en Tauride is considered to be one of his best.
German Romantic composer and conductor Max Christian Friedrich Bruch (1838-1920), also known as Max Karl August Bruch, produced more than 200 works, including three violin concertos, with his Violin Concerto No. 1 in G minor, Op. 26 (1866) one of the most popular Romantic violin concertos.