Maastricht is a city in the Netherlands, located in the southern part of the Dutch province of Limburg.
Throughout the Middle Ages, the city was a centre for trade and manufacturing of wool and leather but gradually economic decline set in. After a brief period of economic prosperity in the 15th century, the city's economy suffered during the wars of religion of the 16th and 17th centuries.
The important strategic location of Maastricht resulted in the construction of an impressive array of fortifications around the city during this period. The Spanish and Dutch garrisons became an important factor in the city's economy. In 1579 the city was sacked by the Spanish army under general Alexander Farnese, Duke of Parma (Siege of Maastricht, 1579). For over fifty years the Spanish crown took over the role of the dukes of Brabant in the joint sovereignty over Maastricht. In 1632 the city was conquered by Frederick Henry, Prince of Orange and the Dutch States General replaced the Spanish crown in the joint government of Maastricht. http://en.wikipedia.org/wiki/Maastricht