<P> The Siege of Paris and the Sack of Paris of 845 was the culmination of a Viking invasion of the kingdom of the West Franks . The Viking forces were led by a Norse chieftain named `` Reginherus '' , or Ragnar , who traditionally has been identified with the legendary saga character Ragnar Lodbrok . Ragnar 's fleet of 120 Viking ships , carrying thousands of men , entered the Seine in March and proceeded to sail up the river . The West Frankish king Charles the Bald assembled a smaller army in response , but as the Vikings defeated one division , comprising half of the army , the remaining forces retreated . The Vikings reached Paris at the end of the month , during Easter . After plundering and occupying the city , the Vikings withdrew when they had been paid a ransom of 7,000 French livres ( 2,570 kilograms ( 83,000 ozt ) ) of silver and gold from Charles the Bald . </P>
<P> The Siege of Paris and the Sack of Paris of 845 was the culmination of a Viking invasion of the kingdom of the West Franks . The Viking forces were led by a Norse chieftain named `` Reginherus '' , or Ragnar , who traditionally has been identified with the legendary saga character Ragnar Lodbrok . Ragnar 's fleet of 120 Viking ships , carrying thousands of men , entered the Seine in March and proceeded to sail up the river . The West Frankish king Charles the Bald assembled a smaller army in response , but as the Vikings defeated one division , comprising half of the army , the remaining forces retreated . The Vikings reached Paris at the end of the month , during Easter . After plundering and occupying the city , the Vikings withdrew when they had been paid a ransom of 7,000 French livres ( 2,570 kilograms ( 83,000 ozt ) ) of silver and gold from Charles the Bald . </P>
what year did the vikings invade paris france
what year did the vikings invade paris france
845
845