Thirty Years' War four-year period, the warring parties (the Holy Roman Empire, France, and Sweden) were actively negotiating at Osnabrück and Münster in Westphalia. The end of the war was not brought about by one treaty, but instead by a group of treaties such as the Treaty of Hamburg. On 15 May 1648, the Peace of Münster was signed, ending the Thirty Years' War. Over five months later, on 24 October, the Treaties of Münster and Osnabrück were signed. The war ranks with the worst famines and plagues as the greatest medical catastrophe in modern European history. Lacking good census information, historians have
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