Norman families, such as that of Tancred of Hauteville, Rainulf Drengot and Guimond de Moulins played important parts in the Norman conquest of southern Italy and Crusades.
Rollo je oblegal Pariz, a v letu 911 vstopil kot vazal h kralju Zahodnih Frankov, Karlu Neumnemu prek pogodbe v Saint-Clair-sur-Epte.