The decline of Bruges' wealth started in the 15th century : the unstoppable silting up of the Zwin, the competition with the bigger harbor of Antwerp and the crisis in the cloth industry resulted in less commercial activity. The crisis, however, was not immediately noticable. Bruges continued to construct splendid late-gothic buildings and churches, and the Flemish painting school (with e.g. the brothers Van Eyck and Hans Memling ) started to flourish as never before.
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