born 0441; 860
died 0441; 932
Scandinavian rover who founded the duchy of Normandy .
After raiding Scotland, England, Flanders, and France on pirating expeditions, he took lands along the Seine River as his base ( 0441; 911). He battled Charles III of France, who gave him, in return for Rollo's promise to stop pillaging, the part of Neustria that came to be called Normandy.