Siege of Nyenschantz (1656)

Prelude
The fortress of Nienschanz was founded by the Swedish King Charles IX in 1611, on lands that were cut off from Russia under the pretext of not fulfilling the Vyborg Treaty.

Siege
In June 1656, the Russian voivode Pyotr Ivanovich Potemkin took Nyenschantz by storm, but after the war, both the fortress and the surrounding territories remained in Sweden.

Aftermath
The fortress of Nienschanz was taken by Peter the Great, after a week of siege on May 12, 1703 (during the Northern War). The city was renamed Schlotburg ("castle-town").