The Norwegian Crusade was a crusade that lasted from 1107 to 1110, in the aftermath of the First Crusade, under the leadership of the Norwegian king Sigurd I.*
Sigurd was the first European king to ever go on crusade to the Holy Land, and not one battle during the crusade was lost.
The Norwegian crusade seems to have acted out very similar to earlier Viking raids, though the Norwegians' ultimate aims were different this time.
The main source for the story of the crusade is Snorre's "Heimskringla", the saga callled "Magnussønnenes Saga" in Norwegian.
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So Says Heimskringla
"The Chronicle of the Kings of Norway"