The Old Swiss Confederacy a "de facto" independent state throughout the early modern period, although still nominally part of the Holy Roman Empire until 1648 when the Treaty of Westphalia ended the Thirty Years' War. The Swiss Reformation divided the confederates into Reformed and Catholic parties, resulting in internal conflict from the 16th to the 18th centuries; as a result, the federal diet () was often paralysed by hostility between the factions. The Swiss Confederacy fell to invasion by the French Revolutionary Army in 1798, after which it became the short-lived Helvetic Republic. The adjective "old" was introduced after the Napoleonic era with ,
History of the Catholic Church in Germany for predominance in Europe. The war resulted in large areas of Germany being laid waste, a loss of approximately a third of its population, and in a general impoverishment. The war ended in 1648 with the Peace of Westphalia, signed in Münster and Osnabrück: Imperial territory was lost to France and Sweden and the Netherlands left the Holy Roman Empire after having de facto seceded 80 years earlier. The imperial power declined further as the states' rights were increased. "Aided by the personal charm of its young king Louis XIV, who had assumed the government in 1661, France appeared to