The story
The city was founded in 1639, based on Olavinlinna castle (St. Olaf's Castle). The castle was founded by Erik Axelsson Tott in 1475 in an effort to protect Savo and to control the unstable border between the Kingdom of Sweden and its Russian adversary. During the Russo-Swedish War (1741–1743), the castle was captured by Field-Marshal Peter Lacy. It was held by Russia between 1743 and 1812, when it was granted back to Finland as a part of "Old Finland".
In 1973 the municipality of Sääminki was consolidated with Savonlinna. In the beginning of year 2009 the municipality of Savonranta and a 31.24 km2 (12.06 sq mi) land strip from Enonkoski between Savonlinna and Savonranta were consolidated with Savonlinna. In the beginning of the year 2013, the municipalities of Kerimäki and Punkaharju were consolidated with Savonlinna.
From Wikipedia’s article on Savonlinna, shared under CC BY-SA 4.0.4
