This section needs expansion. You can help by adding to it. (July 2015)
May - Lennart Torstensson is appointed field marshal and becomes the leader of the Swedish army during the Thirty Years' War in Germany.The Peace of Westphalia, which effectively ended the Thirty Years' War, was signed in 1648.
Births
20 January - Anders Torstenson, member of the Privy Council, Governor-General of Estonia (died 1686)
Urban Hjärne, chemist, geologist, physician and writer (died 1724)