When King Harold the Fair-haired, in 872 a.d., had united all the scattered earldoms of Norway under his own sway, he issued a stringent order forbidding pillaging within his kingdom under penalty of outlawry. The custom of sailing out into the world as a viking and plundering foreign lands, was held to be a most honorable one in those days; and every chieftain who wished to give his sons the advantages of "a liberal education" and foreign travel, strained his resources in order to equip them for such an expedition. But the Norwegians of the ninth century had as yet no national feeling; and they regarded King Harold's prohibition against plundering their own shores as absurd and arbitrary. Rollo or Rolf, the son of the king's best friend, Ragnvald, Earl of Möre, undertook to disregard the order. Coming home from a cruise in the Baltic and being short of provisions, he landed in the south of Norway and made havoc among the coast dwellers. The king, determined to make an end of the nefarious practice, kept his word and outlawed him.

Rollo, being unequal to a struggle with the king, betook himself to the Hebrides, where a number of other Norse chieftains had sought a refuge from similar persecutions. His great strength and sagacity, no less than his distinguished birth, secured him a favorable reception and much influence. He was so tall that no Norwegian horse could carry him, for which reason he was compelled always to walk, and was surnamed Rollo the Ganger, or Walker. Though not formally recognized as chieftain, he seems gradually, by dint of his eminence, to have assumed command over the Norse exiles; and it was probably at his advice that they resolved to abandon the bleak and barren Hebrides, and seek a more congenial home in a sunnier clime. At all events a large expedition was fitted out and set sail for the south, early in the tenth century. It landed first in Holland, but finding that all-too-accessible country already devastated by other vikings, they proceeded to the coast of France and entered the mouth of the river Seine. Charles the Simple, a feeble, foolish, and good-natured man, was then king of France, but utterly unequal to the task of defending his territory against foreign invaders or domestic pretenders. The empire of Charlemagne had been broken up and divided among his grandsons; and the fraction which was to be France, was then confined between the Loire and the Meuse.

Here was a golden opportunity for Rollo the Ganger and his vikings. Meeting with no formidable opposition, they sailed up the Seine and cast anchor at the town of Jumièges, five leagues from Rouen. This ancient city, which had suffered much from recent sieges and invasions, was in no condition to defend itself. It was of slight avail that the priests chanted in the churches, with the fervor of despair: "Deliver us, oh God, from the fury of Norsemen!" The vikings continued to pillage the surrounding territory, and were daily expected to sack the city. In this dire dilemma the Archbishop of Rouen offered himself as an ambassador to the pagans, in the hope that perhaps he might become an instrument in the hand of God to avert the impending doom. But if, as seemed more probable, martyrdom was in store for him, he was ready to face death without flinching. Rollo, however, who could honor courage even in an enemy, received him courteously, and after a brief negotiation pledged himself, in case the city surrendered, to take peaceful possession of it and to molest no one. This pledge he kept to the letter. His ships sailed up the river, and the tall chieftain, at the head of his band of yellow-haired warriors, made his entry into Rouen, without a sword being drawn or a torch lighted. He inspected the fortifications, the water supply, and all points of strategic interest, and finding everything tolerably satisfactory, resolved to remain. Making Rouen his headquarters and base of supplies, the Norsemen made expeditions up the Seine and established a great fortified camp near the confluence of the Seine and the Eure. Hither a French army, under the command of Regnault, Duke of France, was sent to drive them out of the country. But before risking a battle Regnault chose to negotiate. He sent a certain Hasting, Count of Chartres, to Rollo in order to find out what was the aim and object of his invasion. This Hasting was himself a Norseman, and had, twenty years before, proved himself so formidable a foe, that the King of France had been compelled to buy his friendship by a concession of land and a noble title, in return for which favors Hasting had become a Christian and a vassal to the king. It was doubtful, perhaps, if this man, even though he may have acted in good faith, was the best ambassador to his countrymen. For he was himself a living example of what might be gained by audacity and a shrewd use of one's advantages.

The following conversation is reported to have taken place between the Count of Chartres and the Norwegian vikings:

"Gallant soldiers!" shouted Hasting, from afar, "what is your chieftain's name?"

"We have no lord over us," they replied; "we are all equal."

"For what purpose have you come to France?"

"To drive out the people who are here, or make them our subjects, and win for ourselves a new country. But who are you? How is it that you speak our tongue?"

"You know the story of Hasting," the count made answer; "Hasting, the great viking, who scoured the seas with his multitude of ships, and did so much damage in this kingdom?"

"Ay, we have heard of that; but Hasting has made a bad end to so good a beginning."