Are you sure you're not confused about your assignment? Western Europe does not include 'Nords' they are Northern European. Bohemians (modern Czech Republic) and some other Slavic regions are Central European and the Italians are Southern European. Germany is tenuously (in my mind at least) Western European along with France, the British Isles, and Iberia (modern Spain and Portugal).

If you're not confused then I think your teacher is. The Northmen (I use this broad description consciously, I'm referencing Marc Bloch's Feudal Society, before anyone starts getting pissy) are not commonly said to have a 'feudal society' even in the most loose interpretation of the term. I'd suggest rephrasing your question and reposting it as Scandinavian specialists will likely pass over it and 'feudal' historians aren't usually knowledgeable about Scandinavia.