context: Cosima was the daughter of Hungarian composer and pianist Franz Liszt. In 1857, she married the conductor Hans von Bülow, in marriage with whom she gave birth to two children. In 1863, Cosima began an affair with Wagner, and in 1870 they got married. With Richard, Cosima founded the Bayreuth Festival, intended for the production of Wagnerian operas in full accordance with the plan of the composer. After Wagner's death in 1883, Cosima led the Bayreuth Festival, devoting the rest of her life to preserving and glorifying his legacy.
question: Who was Cosima Wagner by nationality?
answers.text: Hungarian