Wikipedia:
Louis-Aimé Maillart (b. March 24, 1817 in Montpellier; † May 26, 1871 in Moulins (Allier)) was a French composer.
Maillart studied at the Paris Conservatory from 1833 under Simon Leborne, Fromental Halévy, Antoine Elwart, Antonín Reicha, and the violinist Paul Guérin (1799-1872), and won the Premier Grand Prix de Rome in 1841 with the cantata Lionel Foscari.
His success as a composer began with the premiere of the three-act opera Gastibelza ou Le fou de Tolède at the Paris Opera in 1847. This was followed by premieres of other operas at the Opéra-Comique. Les dragons de Villars was on the repertoire of French musical theaters for many years. Maillart's operas were also successfully performed in Belgium, Spain, England and Poland.
In 1860, he was appointed Chevalier of the Legion of Honor. Due to the siege of Paris in 1870 and 1871, Maillart left the city and died in 1871 in the small town of Moulins in Auvergne.
Note: Translated from a German version of Wikipedia into English.