INTRODUCTION. Descendants of Ragnar is an extract from my essay on the history of the Stanhope family, which will attempt to show that such chieftains in Normandy as Hrolf Turstain and Bernard the Dane were descendants of Ragnar Lodbrok, alias Reginheri, the leader of the Viking attack on Paris in 845, who may have been the prototype for the semilegendary Ragnar Lodbrok.