The Treaty of Westphalia curbed but hardly ended the expansionist ambitions of German dynasties such as the Austrian Habsburgs. Scarcely had they recovered from the Thirty Years’ War when the princes and the emperor plunged into new dynastic struggles. In the west, German princes were involved in several wars as French king Louis XIV strove to extend his territory past the Rhine. In the War of the Devolution (1667-1668), Great Elector Frederick William of Brandenburg accepted a large sum of money from Louis in return for political support. In the Dutch War (1672-1678) Frederick William turned against Louis and the French, who were allied with Sweden. He fought off a Swedish invasion and conquered western Pomerania, but was forced to give up these conquests at the Peace of Saint-Germain-en-Laye in 1679. He later benefited Brandenburg by offering refuge to Huguenots (French Calvinists), whom Louis had exiled. About 20,000 Huguenots migrated east, bringing French culture and skills such as weaving. Louis’s invasion of the Rhineland-Palatinate led to the war of the League of Augsburg (1688-1697), in which he won Strasbourg and Alsace.