The 'Lion of the North', King Gustavus Adolphus of Sweden, was one of the major players in the Thirty Years War of 1618-48. In 1630 Gustavus - the last champion of the Protestants - crushed the Catholics at Breitenfeld in a victory widely viewed as the fulfillment of a prophecy foretelling the defeat of the eagle (the German Emperor's emblem) by a golden lion. Killed in battle at L tzen only two years later, Gustavus nevertheless won fame for his...