Which Oscar Wilde play was originally written in French?

Salome (French: Salomé) is a tragedy by Oscar Wilde. The original 1891 version of the play was in French. Three years later an English translation was published. The play tells in one act the Biblical story of Salome, stepdaughter of the tetrarch Herod Antipas, who, to her stepfather's dismay but to the delight of her mother Herodias, requests the head of Jokanaan (John the Baptist) on a silver platter as a reward for dancing the dance of the seven veils.

Wilde's version of the story has since spawned several other artistic works, the most famous of which is Richard Strauss's opera of the same name. Strauss saw Wilde's play in Berlin in November 1902, at Max Reinhardt's 'Little Theatre', with Gertrud Eysoldt in the title role, and began to compose his opera in summer 1903, completing it in 1905 and premiering it later the same year. The Strauss opera moves the centre of interest to Salome, away from Herod Antipas. However, it was not the only operatic treatment. Antoine Mariotte also wrote Salomé in 1905, and he was involved in a debate with Strauss to prove that his music was written earlier than Strauss's version. Mariotte's version was premiered in 1908.