 Complete the following phrase:  Negroni was born in the Castle of San Colombano, also known as the Castello di San Colombano in Rogliano a commune in the Haute-Corse department of France on the island of Corsica. He joined the French Army when he was 18 years old. On 6 August 1870, he led the legendary charge of cuirassiers mounted cavalry soldiers in the second 