Passau is one of the oldest cities in Germany, a village of Gauls in early days; and later, a Roman camp. Known also as the Dreiflüssestadt (City of Three Rivers), because the Danube is joined there by the Inn from the South, and the Ilz coming out of the Bavarian Forest to the North. The position of the city, at the junction of the Inn, Ilz, and Danube rivers, justifies its importance.
DeColange, Leo The Heart of Europe from the Rhine to the Danube (Boston, MA: Estes and Lauriat, Publishers, 1883)
Courtesy the private collection of Roy Winkelman