Antoine Henri Becquerel was a French experimental physicist who shared the 1903 Nobel Prize in Physics with Marie and Pierre Curie for his discovery of radioactivity. The Nobel Prize in Physics 1903, announced November 12, 1903. Henri Becquerel (1/2), “in recognition of the extraordinary services he has rendered by his discovery of spontaneous radioactivity”. Pierre Curie (1/4), “in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel”. Marie Curie (1/4), “in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel”. Henri Becquerel: born 1852, Paris, France. Pierre Curie: born 1859, Paris, France. Marie Curie: born 1867, Warsaw, Russian Empire (now Poland). Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).