claim: Chinatown's screenplay was by Robert Frost only.
evidence: The Treaty of Xanten -LRB- -LSB- Vertrag von Xanten , links = no -RSB- -RRB- was signed in the Lower Rhine town of Xanten on November 12 , 1614 between Wolfgang Wilhelm , Count Palatine of Neuburg and John Sigismund , Elector of Brandenburg , with representatives from England and France serving as mediators .. Xanten. Xanten. The treaty ended the War of the Julich Succession and all hostilities between Wolfgang William and John Sigismund .. War of the Julich Succession. War of the Julich Succession. Based on the terms of the treaty , the territories of Julich-Berg and Ravenstein went to Wolfgang William .. Julich-Berg. Julich-Berg. Ravenstein. Ravenstein, Netherlands. Moreover , the territories of Cleves-Mark and Ravensberg went to John Sigismund .. Cleves-Mark. Cleves-Mark. Ravensberg. County of Ravensberg. These last territories were the first provinces at the Rhine and in Westphalia to be governed by the House of Hohenzollern , and were the oldest constituents of the future Prussian Rhineland and the future Province of Westphalia .. House of Hohenzollern. House of Hohenzollern. Prussian Rhineland. Prussian Rhineland. Province of Westphalia. Province of Westphalia