Photograph of an engraving of the council chamber of the City Hall of Münster. In this boardroom the Peace of Münster was signed between the Dutch Republic an the Kingdom of Spain on 30 January 1648, and officially ratified in Münster on 15 May 1648. With this treaty, the United Netherlands finally became independent from the Spanish Crown.

• http://en.wikipedia.org/wiki/Peace_of_M%C3%BCnster