...Rhone as far as Avignon, which is at least doubtful. The strength of their armaments is not known, the largest appears to have been three hundred sail. At the commencement of the tenth century, Rollo , descending at first upon England, finds in Alfred a rival who leaves him little hope of success, he allies himself with him, makes a descent upon Nuestria, in 911, and marches by Rouen upon Paris; o...