Alexandre Dumas, fils (French for son, similar to Junior in English) (July 27, 1824 – November 27, 1895) was the son of Alexandre Dumas, père, who followed in his father's footsteps becoming a celebrated writer, author and playwright.
Dumas' paternal great-grandparents were a white French nobleman and a Haitian woman. In the boarding schools, Dumas fils was constantly taunted by his classmates. These issues all profoundly influenced his thoughts, behaviour, and writing.
In 1844 Dumas fils moved to Saint-Germain-en-Laye to live with his father. There, he met Marie Duplessis, a young courtesan who would be the inspiration for his romantic novel, La dame aux camélias (The Lady of the Camellias). Adapted into a play, it was titled in English (especially in the United States) as Camille and is the basis for Verdi's 1853 opera, La Traviata. Although he admitted that he had done the adaptation because he needed the money, he had a huge success with the play. Thus began the playwriting career of Dumas fils which not only eclipsed that of his father during his lifetime but also dominated the serious French stage for most of the second half of the nineteenth century. After this, he virtually abandoned the novel (though his semi-autobiographical L'Affaire Clemenceau (1867) achieved some success).
On 31 December 1864, Alexandre Dumas fils married Nadjeschda von Knorring (1826 – April 1895), daughter of Johan Reinhold von Knorring and wife, and widow of Alexander, Prince Naryschkine, whom he married at Moscow and with whom he had two daughters: Marie-Alexandrine-Henriette Dumas, born 20 November 1860, who married Maurice Lippmann and was the mother of Serge Napoléon Lippmann (1886 – 1975) and Auguste Alexandre Lippmann (1881 – 1960); and Jeanine Dumas (3 May 1867–), who married Ernest d' Hauterive (1864 – 1957), son of George Lecourt d' Hauterive and wife (married in 1861) Léontine de Leusse. After Naryschkine's death, he married in June 1895 Henriette Régnier de La Brière (1851 – 1934), without issue.
In 1874, he was admitted to the Académie française and in 1894 he was awarded the Légion d'honneur.
Alexandre Dumas fils died at Marly-le-Roi, Yvelines, on November 27, 1895 and was interred in the Cimetière de Montmartre in Paris. His grave is, perhaps coincidentally, only some 100 metres away from that of Marie Duplessis.