URBINO, a duchy of Italy, in the territory of the church, bounded on the north by the gulph of Venice; on the south, by Perugino and Umbria; on the east, by the marquisate of Ancona; and on the west, by Tuscany and Romagna. It is about 55 miles in length, and 45 in breadth. Here is great plenty of game and fish; but the air is not very wholesome, nor is the soil fertile. Urbino is the capital.