Krefeld (ˈkreɪfɛld,_-ɛlt , ˈkʁeːfɛlt; Krieëvel ˈkʀiə˦vəl), also spelled Crefeld until 1925 (though the spelling was still being used in British papers throughout the Second World War), is a city in North Rhine-Westphalia, Germany. It is located northwest of Düsseldorf, its center lying just a few kilometers to the west of the river Rhine; the borough of Uerdingen is situated directly on the Rhine. Because of its economic past, Krefeld is often referred to as the "Velvet and Silk City". It is accessed by the autobahns A57 (Cologne–Nijmegen) and A44 (Aachen–Düsseldorf–Dortmund–Kassel). Krefeld's residents now speak Hochdeutsch, or standard German, but the native dialect is a Low Franconian variety, sometimes locally called Krefelder Platt, Krieewelsch Platt, or sometimes simply Platt. The Uerdingen line isogloss, separating general dialectical areas in Germany and neighboring Germanic-speaking countries, runs through and is named after Krefeld's Uerdingen district, originally an independent municipality. Records first mention Krefeld in 1105 under the name of Krinvelde. In February 1598, Walburga, wife of Adolf van Nieuwenaar, and last Countess of Limburg and Moers, gave the County of Moers, which included Krefeld, to Maurice, Prince of Orange. After her death in 1600, John William of Cleves took possession of these lands, but Maurice successfully defended his heritage in 1601. Krefeld and Moers would remain under the jurisdiction of the House of Orange and the Dutch Republic during the Dutch Golden Age. The growth of the town began in that century, partially because Krefeld was one of few towns spared the horrors of the Thirty Years' War (1618–1648). The town of Uerdingen, incorporated into Krefeld in the 20th century, was less fortunate, almost ceasing to exist, destroyed at the hands of troops from Hesse during the Thirty Years' War. After the death of William III of Orange in 1702, Krefeld passed to the Kingdom of Prussia. The Battle of Krefeld occurred nearby in 1758 during the Seven Years' War.