JULIERS, a duchy in the circle of Westphalia, in Germany, seated between the rivers Maese and Rhine, and bounded by Prussian Guelderland on the north, by the electorate of Trier on the south, by the electorate of Cologne on the east, and by the Netherlands on the west. It is about 60 miles long, and 30 broad; and is a very plentiful country, abounding in cattle, corn, and fine meadows, and is well supplied with wood; but it is most remarkable for a fine breed of horses, and wood for dying, which is gathered here in abundance. The chief towns are Juliers, Aix-la-Chapelle, Duren, Munster-Eifel, Bedbur, Wesinburgh, and Lutteren. It is subject to the elector Palatine, with the consent of the kings of Prussia and Poland.