French author of historical adventure novels, among them 三个火枪手 (The Three Musketeers) and 基督山伯爵 (The Count of Monte Cristo). 大, "the elder", sets him apart from his son 小仲马, also a writer.
Dumas père wrote The Three Musketeers and The Count of Monte Cristo.
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仲马 sounds little like 'Dumas' in Mandarin because the translator 林纾 chose it by his native Fuzhou pronunciation, and the name stuck. Dumas itself was the surname of his grandmother, an enslaved woman in Saint-Domingue, now Haiti.