Dominions of Sweden German principalities, the Swedish kings in their roles as princes and dukes, or "Reichsfürsten", of the Holy Roman Empire took part in the German diets from 1648 until the dissolution of the Holy Roman Empire in 1806. Following the Thirty Years' War, the Peace of Westphalia in 1648 assigned to Sweden the two bishoprics of Bremen-Verden, with the exclave of Wildeshausen. All of them were ceded to Hanover in the peace treaty of 1719. By the Peace of Westphalia in 1648 Sweden received Swedish Pomerania, situated along the German Baltic Sea coast. The whole Duchy of Pomerania was under Swedish
Dominions of Sweden Norway to the king of Sweden under the Treaty of Kiel, which followed on Second War against Napoleon. However the treaty of Kiel never came into force: instead sovereignty of Western Pomerania passed to Kingdom of Prussia, who already held the eastern parts and merged them into the Province of Pomerania. Norway declared her independence, but was forced after a short war into a personal Union with Sweden. Sweden received the German town of Wismar with the surrounding countryside in the Peace of Westphalia (1648). In 1803 Wismar was pawned, in exchange for a loan, and control was handed over