Wismar affair

However, as the German Empire rose throughout the 19th century, the possibility of Sweden demanding the return of the territory seemed more and more unlikely as King Oscar II would not like to challenge a great power.

[4][2][3][5] Friedrich appealed to the Danish court for mediation where it was decided that a sum of 100,000 Riksdalers would be paid by Sweden as compensation (6,000 every year).

[3][5] However, Mecklenburg-Schwerin's desire to take control over Wismar persisted regardless as Mecklenburg diplomats attempted to persuade Russia to support them in the matter in 1797.

[3] Failing to gain the support of Russia, August von Lützow was instead tasked with securing a deal with Sweden to buy Wismar.

[3] Lützow met with the Swedish general Von Toll in Russia and managed to make him agree to bring up the matter when he returned home.

[4][3] Eventually, on the 26th of June, the respective sides would both sign the Treaty of Malmö which stipulated that Sweden would lease the territory to Wismar in exchange for a loan of 1,250 000 Riksdalers and the Swedish crown would sell all of their possessions and estates in the city.

[5][2] German intellectuals in Wismar speculated if Sweden (As a part of Sweden-Norway) would ever use their right to claim overlordship over the city to reclaim some remnants of the now long gone Swedish Empire.

[4] "attnågon inlösning af panten aldrig skulle komma i fråga, utan öfverlåtelsen vara gjord för evärdliga tider, därom var man fullkomligt ense och därom hade icke heller under de preliminära förhandlingarna rådt någon meningsskiljaktighet.

[7] Traces of the Swedish era still remain in Wismar, notably in the form of the annually celebrated Schwedenfest (English: Sweden fest) every August.

Wismar in 1892
King Oscar II of Sweden