From The Art and Popular Culture Encyclopedia
The beeldenstorm is an umbrella term for a series of destructions of Roman-Catholic properties which took place between August 10 and October 1566 in Low Countries. The beeldenstorm started in Steenvoorde, the current French-Flanders. Indirectly it led to the Eighty Years' War and the existence of the Dutch Republic.
One hallmark of the Reformation was the belief that excessive commemoration of the saints and their images had become idolatry. Efforts to end it led to the iconoclasm of 1566 (the Beeldenstorm) – the demolition of statues and paintings depicting saints. This was associated with the ensuing religious war between Catholics and Protestants, especially the Anabaptists. The Beeldenstorm started in what is now the arrondissement of Dunkirk in French Flanders, with open-air sermons hagepreken) . The first took place on the Cloostervelt near Hondschoote. The first large sermon was held near Boeschepe on July 12, 1562. These open-air sermons, mostly of Anabaptist or Mennonite signature, spread through the country. On August 10, 1566 at the end of the pilgrimage from Hondschoote to Steenvoorde, the chapel of the Sint-Laurensklooster (Monastery of Saint Lawrence) was defaced by Protestants. The iconoclasm resulted not only in the destruction of Catholic art, but also cost the lives of many priests. It next spread to Antwerp, and on August 22, to Ghent. One cathedral, eight churches, twenty-five cloisters, ten hospitals and seven chapels were attacked. From there, it further spread east and north, but in total lasted not even a month.