Scoriat King of Fearmork*, King of Fearmork - Question of a Location.

This, as far as I can tell, is a place name that shows up only in one place, attached to this one person. And also as far as I can tell, we do not know where it is.

this isn't unusual.

A much more well known personage, St. Patrick, tells us that he was from Bannavem Taburniae.

Nice and clear, but we do not know where that is. Lots of conjecture. But we don't know.

There have been a lot of guesses as to where the birthplace of St. Patrick may have been, some of them better than others. Most likely it was somewhere on the west coast of the isle of Britain, considering that he was carried off into slavery by Irish raiders. Here's a popular and very scenic guess: https://en.wikipedia.org/wiki/Banavie

Scoriat appears to be Fictional, so I don't think we need bother about him.