History of Strasbourg remained neutral during the Thirty Years' War (1618-1648), and retained its status as a Free Imperial City. However, the city was later annexed by Louis XIV of France to extend the borders of his kingdom. Louis' advisors believed that, as long as Strasbourg remained independent, it would endanger the King's newly annexed territories in Alsace, and, that to defend these large rural lands effectively, a garrison had to be placed in towns such as Strasbourg. Indeed, the bridge over the Rhine at Strasbourg had been used repeatedly by Imperial (Holy Roman Empire) forces, and three times during the Franco-Dutch War
European institutions in Strasbourg The Audiovisual Observatory and the Institute for Human Rights are the only institutions in the quarter to have moved into pre-existing premises: a 1900 villa and an 18th-century former postal relay station and inn turned conventual building, respectively. The Arte headquarters, previously disseminated on several buildings across the town, were united in a single spacious building close to the Louise Weiss building in 2003. November 2007 saw the extension of the Strasbourg tramway into the European Quarter, with the inauguration by European Parliament president Hans-Gert Pöttering, CoE Secretary general Terry Davis and Eurocorps Lieutenant General Pedro Pitarch of the "Parlement