The fortress of

Nyenschantz Nyenschantz (; ; ) was a Swedish fortress at the confluence of the Neva River and Okhta River, the site of present-day Saint Petersburg, Russia. Nyenschantz was built in 1611 to establish Swedish rule in Ingria, which had been annexed from the T ...

or Nienschanz, later Schlotburg, was founded by the Swedish King Charles IX in 1611, on lands that were annexed from Russia under the pretext of not fulfilling the

Vyborg Treatise The Treaty of Viborg was a package of 7 documents signed in Vyborg, Viborg during 1609 between Sweden and Tsardom of Russia, Russia on the provision by Sweden of Military aid, military assistance to the government of Vasili IV of Russia, Vasily Sh ...

. In June 1656, the Russian

voivode Voivode ( ), also spelled voivod, voievod or voevod and also known as vaivode ( ), voivoda, vojvoda, vaivada or wojewoda, is a title denoting a military leader or warlord in Central, Southeastern and Eastern Europe in use since the Early Mid ...

Pyotr Ivanovich Potemkin with a detachment of 1,000 people took Nyenschantz by storm, but after the war, both the fortress and the surrounding territories remained in Sweden. The fortress was taken by the Russians under

Peter the Great Peter I (, ; – ), better known as Peter the Great, was the Sovereign, Tsar and Grand Prince of all Russia, Tsar of all Russia from 1682 and the first Emperor of Russia, Emperor of all Russia from 1721 until his death in 1725. He reigned j ...

, after a week of siege on May 12, 1703 (during the

Great Northern War In the Great Northern War (1700–1721) a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in Northern Europe, Northern, Central Europe, Central and Eastern Europe. The initial leaders of the ant ...

). The city was renamed Schlotburg ("castle-town").

References

{{coord missing, Russia Northern War of 1655–1660 Nyen(1656) Nyen(1656) Conflicts in 1656 1656 in Europe