Rollo the Dane, 1st Duke of Normandy. The Normans, Men of the North, were a mixed nation of the fiercest Norwegians, Swedes and Danes, and became settled in Neustria in France at the beginning of the 10th Century when Charles the Simple, King of France, conferred the Duchy, since called Normandy, on Rollo the Dane, one of the most celebrated of the Norman leaders. This renowed chieftain married 1st Poppae, daughter of Berengarius, Count of Bayeux, 2nd Gisela, daughter of Charles, King of France. By the first wife he left at his death, in 931, two sons and two daughters: William, Robert, Count of Corbell, Crespina and Gerletta.