His troops destroyed the monastery of St.Germain's, near the city, and then the King of the Franks, finding himself at their mercy, bought them off by paying a large sum of money.

With this money and the other booty which they had acquired, Ragnar and his horde now returned to their ships at Rouen, and sailed away again toward their usual haunts among the bays and islands of the Baltic Sea.
This exploit, of course, gave Ragnar Lodbrog's barbarous name a very wide celebrity.

It tended, too, greatly to increase and establish his power.

He afterward made similar incursions into Spain, and finally grew bold enough to brave the Anglo-Saxons themselves on the green island of Britain, as the Anglo-Saxons had themselves braved the aboriginal inhabitants two or three centuries before.

But Ragnar seems to have found the Anglo-Saxon swords and spears which he advanced to encounter on landing in England much more formidable than those which were raised against him on the southern side of the Channel.