Having been fortified the town withstood several sieges, specially during the Eighty Years' War, the most celebrated fight under its walls being the Battle of Zutphen in September 1586 when Sir Philip Sidney was mortally wounded. Taken by the Spanish in 1587 by the treachery of the English commander Rowland York, Zutphen was recovered by Maurice, prince of Orange, in 1591, and except for two short periods, one in 1672 and the other during the French Revolutionary Wars, it has since then remained a part of the Netherlands. Its fortifications were dismantled in 1874. In World War II the town was bombed several times by the allied forces because the bridge over the IJssel was vital to support the German troops at Arnhem after the Operation Market Garden. After two weeks of battle the town was liberated on 14 April 1945. After the war a renovation program started. Nowadays Zutphen has one of the best preserved medieval town centres of northwestern Europe, including the remains of the medieval town wall and a few hundred buildings dating from the 13th, 14th and 15th centuries.