Marie Skłodowska-Curie, or simply Marie Curie, born Maria Salomea Skłodowska on November 7, 1867, in Warsaw (Russian-ruled Kingdom of Poland) and died on July 4, 1934, in Passy, in the sanatorium of Sancellemoz (Haute-Savoie), was a Polish physicist and chemist, who became a naturalized French citizen through her marriage to the physicist Pierre Curie in 1895.