It was Torkel Knutson who conquered and connected the Karelian Finlanders in 1293, and built the strong castle of Viborg.
In Russian Lapland alone there are three, due to the influence of Norwegian, Karelian and Russian (Lonnrot, Ada Soc. Sci.
The Karelian craton is relatively underexplored given its size.
Today I inspected our Karelian fortifications and on the whole found the situation tolerable.