Louis XIV of France the war with a French victory, in order to establish a lasting peace between the Catholic nations. The Queen also gave a partial Catholic orientation to French foreign policy. This was felt by the Netherlands, France's Protestant ally, which negotiated a separate peace with Spain in 1648. In 1648, Anne and Mazarin successfully negotiated the Peace of Westphalia, which ended the Thirty Years' War in Germany. Its terms ensured Dutch independence from Spain, awarded some autonomy to the various German princes of the Holy Roman Empire, and granted Sweden seats on the Imperial Diet and territories to control the mouths
Treaty of Stettin (1653) Pomerania became Brandenburgian Pomerania. During the war, Sweden had occupied the Duchy of Pomerania in 1630. The last Griffin duke Bogislaw XIV died in 1637, his duchy was supposed to be inherited by Brandenburg, who based her claims on in the Treaty of Grimnitz. This however was hindered by the Swedish presence. The 1648 Peace of Westphalia ended the war, and Pomerania was to be partitioned between Brandenburg and Sweden. The 1650 Treaty of Nuremberg roughly defined the areas that should be under control of Sweden and Brandenburg, respectively. The precise border was drawn in the 1653 Treaty of Stettin,