The Hansa was a confederation of German cities engaged in trade in the area of the Baltic Sea which had banded to together to protect their opportunities to trade. The chief city was Lübeck, the German city just east of Denmark. It was here that the representives of the Hansa cities met to formulate policy and strategy.
The Hansa may have arisen because of the practice of foreign countries in forcing all German merchants to locate in special areas. This promoted their cooperation in matters of common interest. The German merchants also began to cooperate in dealing with defense against bandits and pirates. The cooperation of merchant associations was later expanded to include trade with Flanders and England.
The Hansa organized convoys to cope with pirates and later built light-houses to safeguard against navigation dangers. It went beyond just facilitating trade to securing special privileges and trading monopolies for the association. The Hansa operated also operated permanent enclaves in Bruges in Flanders (Belgium), Bergen in Norway, Novgorod in Russia and in London (the Steel Yard) in England.
The major items of trade were:
The pinnacle of Hansa power came in the 1360's when the Hansa organized an army and navy which in 1386 defeated those of Danish king Valdemar IV. At its peak the Hansa included about one hundred cities, not all of them German. But by the 1400's the Hansa's power declined dramataically due to political disunity within the Hansa and competition from Dutch merchants for the Baltic trade. The representatives of the Hansa met for the last time in 1669.