Was Claude Debussy ever married?

Yes, twice, in fact. First to Rosalie Texier in 1899 who he divorced in 1904, later, in 1908 to Emma Bardac. Debussy had only one child, a daughter named Claude-Emma (Chouchou), born to Emma Bardac in 1905 and died in 1919 after being given the wrong treatment for diphtheria.