As I wrote in the first part of the article, the OlavinLinna fortress was founded by the Swedes in 1475 and originally had the name Nyslott (New Castle).
It was located at the strategically important territory bordering with the Novgorod principality, which, however, according to the terms of the Orekhovets peace treaty, had to be completely demilitarized.
However, understanding the importance of protecting inland waterways, the Swedes violated the clauses of the peace treaty, which of course could not have a positive effect on relations with the Russians, who had claims to the site of the fortress, talking that it was their territory.
OlavinLinna many times has reaffirmed its military value. Over the course of several centuries it passed from hand to hand – Russia either conquered it or gave it back to Sweden.
The intensity of military actions decreased in 1809, when Finland became a principality within the Russian Empire and Sweden renounced its claims to these territories.
At the present day OlavinLinna is a popular tourist destination in Finland, and during the summer it hosts an opera festival that attracts thousands of fans from all over the world.