Dudo records that when Rollo took Bayeux by force, he carried off with him the beautiful Popa or Poppa, a daughter of Berenger, Count of Rennes, took her in marriage and with her had their son and Rollo's heir, William Longsword [REF].
After pledging his fealty to Charles III as part of the Treaty of Saint-Clair-sur-Epte, Rollo divided the lands between the rivers Epte and Risle among his chieftains, and settled with a de facto capital in Rouen [REF].