Bourtange (Dutch pronunciation: [ˌbuːrˈtɑŋə]; Gronings: Boertang) is a village with a population of 430 in the municipality of Vlagtwedde in the Netherlands. It is situated in the region Westerwolde in the east of the province of Groningen near the German border. Fort Bourtange was built in 1593 during the Dutch Revolt and was used until 1851. The star fort was restored to its mid-18th-century state in 1960 and it is currently an open-air museum.
The name Bourtange comes from the Dutch word tange (sand ridge), because the settlement is situated on a strategically important sand ridge in the marshes of the Bourtange Moor.
Fort Bourtange was initially built during the Eighty Years' War (circa 1568–1648) when William I of Orange wanted to control the only road between Germany and the city of Groningen which was controlled by the Spanish. This road followed a sandy ridge (tange) through the marshes (the Bourtange Swamp).
Later, around 1594, Bourtange became part of the fortifications on the border between the northern provinces (Groningen, Friesland, Drenthe) and Germany.
Fort Bourtange (Dutch: Vesting Bourtange) is a star fort in the village of Bourtange, Groningen, Netherlands. It was built in 1593 under the orders of William the Silent. Its original purpose was to control the only road between Germany and the city of Groningen, which was controlled by the Spaniards during the time of the Eighty Years' War.
After experiencing its final battle in 1672, the Fort continued to serve in the defensive network on the German border until it was finally given up in 1851 and converted into a village. Fort Bourtange currently serves as a historical museum.
During the Eighty Years' War (1568 - 1648), the Spaniards had control over Groningen and the road leading from there to Germany. William, the leader of the Netherlands, saw it necessary to break off communications between Groningen and Germany. He decided that it would be optimal to build a fortification on the Bourtange passage, which was the main road leading to Germany. The fort was completed in 1593 in the design of a star fort with a network of canals and lakes which were used as moats (which were also constructed in the design of stars). At the time of its completion, the fort housed five garrisons. Soon after its construction, Spanish forces from Groningen besieged it, though the attack ended in failure.