The fortunes of Lubeck and the towns associated
with its career reached a peak
quite late, between 1370 and 1388; in 1370, the Hansa triumphed over the king of
Denmark by the Treaty of Stralsund and occupied certain fortresses on the Sound;
in 1388, following a quarrel with Bruges it forced the wealthy city and the
government of the Netherlands to capitulate, by means of an effective blockade.
However, these late triumphs concealed the beginnings of a decline which was
soon clear for all to see.