Surprisingly enough, fragmentary written evidences had suggested some sort of reciprocal relationship between the Norse and Saami peoples since the Viking Ages.
Right now, I unfortunately don't little time to spare, but I had written some relevant answers in the following threads before:

• What did pre-modern societies, such as the inuits, who lived in the far north think about the incredibly long days in the summer and incredibly long nights in the winter?
• How/why were the Sámi people prosecuted in Scandinavia? When did they become separated from other Scandinavians?

I'm also willing to tackle with your follow-up questions (at least after ca. half a day later, sorry).