The following article contains an answer for the question: What is the name of the commander that experience a defeat that tarnished the reputation of near-invincibility that Swedish forces enjoyed? , can you please find it? 

In the 1660s, Sweden was at its height as a European great power. It had defeated Denmark, one of its main competitors for hegemony in the Baltic, in both the Torstenson War (1643–45) and the Dano-Swedish War (1657–58). At the Treaties of Brömsebro (1645) and Roskilde (1658), Denmark had been forced to cede the islands of Gotland and Ösel, all of its eastern territories on the Scandinavian Peninsula, and parts of Norway. In a third war, from 1658 to 1660, King Charles X of Sweden attempted to finish off Denmark for good. The move was bold royal ambition in an already highly militarized society geared for warfare, a fiscal-military state. Disbanding its armies would have required paying outstanding wages, so there was an underlying incentive to keep hostilities alive and let soldiers live off enemy lands and plunder. The renewed attack on Denmark threatened the interests of the leading shipping nations of England and the Dutch Republic, who were best served by keeping the Baltic region politically divided. The Dutch intervened in 1658 by sending a fleet to stop the attempt to crush Denmark. England also sent a fleet in November the same year, to assist Sweden in keeping the Sound Toll out of Danish and Dutch control. The English expedition failed as a result of adverse winter weather and the political turmoil that ended the Protectorate, and in the end, Charles' plans were thwarted.Charles X died in February 1660. Three months later, the Treaty of Copenhagen ended the war. Charles' son and successor, Charles XI, was only five when his father died, so a regency council—led by the queen mother Hedvig Eleonora—assumed power until he came of age. Sweden had come close to control over trade in the Baltic, but the war revealed the need to prevent the formation of a powerful anti-Swedish alliance that included Denmark. There were some successes in foreign policy, notably the anti-French Triple Alliance of England, Sweden, and the Dutch Republic. By early 1672, Sweden had improved its relations with France enough to...

Carl Gustaf Wrangel