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
Treaty of Grimnitz Sweden refused to hand over the duchy. An agreement was reached to partition the duchy into a Swedish and a Brandenburgian part in the Peace of Westphalia (1648), which was put into effect in the Treaty of Stettin (1653). Treaty of Grimnitz The Treaty of Grimnitz (26 August 1529) was the final settlement of a long-standing dispute between the House of Pomerania and the House of Hohenzollern regarding the legal status and succession in the Duchy of Pomerania. It renewed and amended the Treaty of Pyritz of 1493. With some formal caveats, the House of Pomerania received the Duchy of