SPOLETO, a duchy of Italy, bounded on the north by the Marche of Ancona and duchy of Urbino, on the east by Farther Abruzzo, on the south by Sabina and the patrimony of St Peter, and on the west by Orvietano and Perrugino. It is about 55 miles in length and 40 in breadth. It was anciently a part of Umbria, and now belongs to the Pope.—The name of the capital city is also Spoleto. It was formerly a large place, but in 1703 was ruined by an earthquake; from whence it has never recovered itself.