a town of the Papal States, capital of a delegation of the same name, stands on a steep hill at the confluence of the Paglia and Chiana, 16 miles N.E. of Bolsena, and about 60 N.N.W. of Rome. It is a clean, well-built town, surrounded by walls; and contains several fine palaces. Besides the episcopal palace, the chief of these are—the Gualterio, containing frescoes by Domenichino, Albano, and other artists; and the Palazzo Petranelli, with a fine collection of paintings by Pietro Perugino. The cathedral, founded in 1290, is an Italian-Gothic edifice, with a front richly adorned with sculptures and mosaics, which is considered one of the finest in Italy. In the interior are many valuable paintings, and a large collection of sculptures. Orvieto contains several other churches, a Jesuits' college, and a town-hall; but the principal other object of interest is St Patrick's Well, excavated by order of Clement VII., in the tufa rock, about a mile from the town. Many Etruscan remains have been found here, this town having been built on the site of the ancient Herbanum. Some trade is carried on in cattle, corn, wine, and silk. Pop. 8000. The delegation of Orvieto has an area of 300 square miles. Pop. (1853) 29,047.