Borders: the Treaty of Brömsebro

Today we go back to the once troubled borders between Sweden, Denmark, and Norway (see #Borders 1): these are the documents related to the second Treaty of Brömsebro, signed in 1645, which put an end to the Torstenson War, a local conflict that began in 1643 as part of the Thirty Years’ War. Sweden was very successful in the global conflict, defeating the imperial troops in Germany and thus being able to claim territorial gains at the expenses of Denmark-Norway because of its superior military power.

The treaty marked a defeat for Denmark-Norway, who had to give important concessions to Sweden: it ceded the Norwegian provinces of Jämtland and Härjedalen as well as the Danish Baltic Sea islands of Gotland (all still Swedish territory nowadays) and the island of Ösel (now Estonian)

Brömsebro is today a village of 213 people; back then it was on the border between the two countries. Signing a treaty there was highly symbolical as it came 100 years after the first treaty of Brömsebro between the two countries, from 1541, a military alliance between Sweden and Denmark-Norway against the common enemy of the Hanseatic League.

You can read all the documents on the Brömsebro treaty at the Swedish @Riksarkivet – descriptions available on Archives Portal Europe.

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