Under Gustav IV Adolf of Sweden the town of Gustavia was constructed on the Mönchgut peninsula, but was abandoned during the Napoleonic Wars. In the years 1678 and 1715, Rügen was briefly wrested from the Swedes by the Elector of Brandenburg, Frederick William and by the King in Prussia, Frederick William I. For example, a Brandenburg-Danish army landed on the island as part of the invasion of Rügen in 1678. After the Treaty of Saint-Germain in 1679 the island passed from Danish to Swedish ownership again. At the time of Napoleonic Wars, Rügen was held by the French from 1807 to 1813. In the Treaty of Kiel of 1814, it was transferred initially from Sweden to Denmark and then fell to Prussia, along with New Western Pomerania (), thanks to the Vienna Convention of 1815. In 1818, the island became part of the administrative district of Stralsund and thus belonged to the Prussian Province of Pomerania. Wilhelm Malte I (1783–1854), 1st prince of Putbus, was the last Governor of Swedish Pomerania and the first under Prussian rule.
under gustav iv adolf of sweden the town of gustavia was constructed on the mönchgut peninsula but was abandoned during the napoleonic wars in the years 1678 and 1715 rügen was briefly wrested from the swedes by the elector of brandenburg frederick william and by the king in prussia frederick william i for example a brandenburg-danish army landed on the island as part of the invasion of rügen in 1678 after the treaty of saint-germain in 1679 the island passed from danish to swedish ownership again at the time of napoleonic wars rügen was held by the french from 1807 to 1813 in the treaty of kiel of 1814 it was transferred initially from sweden to denmark and then fell to prussia along with new western pomerania () thanks to the vienna convention of 1815 in 1818 the island became part of the administrative district of stralsund and thus belonged to the prussian province of pomerania wilhelm malte i (1783–1854) 1st prince of putbus was the last governor of swedish pomerania and the first under prussian rule