SESSA AURUNCA, a town and episcopal see of Campania, Italy, in the province of Caserta, on the S.W. slope of the extinct volcano of Rocca Monfina, 27 m. by rail W.N.W. of Caserta and 2012 m. E. of Formia by the branch railway to Sparanise, 666 ft. above sea-level. Pop. 5945 (town), 22,077 (commune). It is situated on the site of the ancient Suessa Aurunca, on a small affluent of the Liri. The hill on which Sessa lies is a mass of volcanic tufa. The town contains many ancient remains, notably the ruins of an ancient bridge in brickwork of twenty-one arches, of substructures in opus reticulatum under the church of S. Benedetto, of a building in opus quadratum, supposed to have been a public portico, under the monastery of S. Giovanni, and of an amphitheatre. The Romanesque cathedral is a basilica with a vaulted portico and a nave and two aisles begun in 1103, a mosaic pavement in the Cosmatesque style, a good ambo resting on columns and decorated with mosaics showing traces of Moorish influence, a Paschal candelabrum, and an organ gallery of similar style. The portal has curious sculptures with scenes from the life of SS. Peter and Paul. In the principal streets are memorial stones with inscriptions in honour of Charles V., surmounted by an old crucifix with a mosaic cross. The hills of Sessa are celebrated for their wine.
The ancient chief town of the Aurunci, Aurunca or Ausona, is believed to have lain over 2000 ft. above the level of the sea, on the narrow south-western edge of the extinct crater of Rocca Monfina. Here some remains of Cyclopean masonry exist; but the area enclosed, about 100 yds. by 50, is too small for anything but a detached fort. It dates, doubtless, from a time prior to Roman supremacy. In 337 B.C. the town was abandoned, under the pressure of the Sidicini, in favour of the site of the modern Sessa. The new town kept the old name until 313, when a Latin colony under the name Suessa Aurunca was founded here. It was among the towns that had the right of coinage, and it manufactured carts, baskets, &c. Cicero speaks of it as a place of some importance. The triumvir settled some of their veterans here, whence it appears as Colonia Julia Felix Classica Suessa. From inscriptions it appears that Matidia the younger, sister-in-law of Hadrian, had property in the district. It was not on a highroad, but on a branch between the Via Appia at Minturnae and the Via Latina at Teanum; the pavement of the road between the latter place and Suessa is in places well preserved, especially near Teano, and so is that of a road ascending from Suessa northward towards the crater mentioned.
See A. Avena, Monumenti dell' Italia Meridionale (Naples, 1902), i. 181 sqq. (T. As.)