Skyrim and norse/fantasy themes

So i pretty much finished up playing through the Skyrim game and became a bit curious as to how much of actual Norse myth Bethesda actually looked into while creating the game, maybe allot maybe just a little. I mean there´s many themes that reminds me of my youth and tales of that time. I don't know if its deliberate but i think that the mist in sovengarde at the end is a nice touch. In old stories its in the mist where you meet fairies/elves and the dead, draugirh/ ghasts and ghouls. and the hall in the end is also kinda cool i was half expecting an pig on the table named saerimmer like in the depiction of vallheul. Just wondering what you guys think if they actually looked into this stuff or if this is just kinda seeped into fantasy tropes over the years and what Bethesda mostly did was to depict burly men of skyrim, ie fantasy vikings?