REGGIO, an ancient, handsome, and strong town of Italy, in the duchy of Modena, with a strong citadel, and a bishop's see. It has been ruined several times by the Goths, and other nations. In the cathedral are paintings by the greatest masters; and in the square is the statue of Brennus, chief of the Gauls. The inhabitants are about 22,000, who carry on a great trade in silk. It was taken by Prince Eugene in 1706, and by the king of Sardinia in 1742. It is seated in a fertile country to the south of the Apennines, and to the north of a spacious plain, 15 miles north-west of Modena, and 80 south-east of Milan. E. Long. 11. 5. N. Lat. 44. 43.—The duchy of this name is bounded on the west by that of Modena, and produces a great deal of silk. It fell under the dominion of the French along with the rest of Italy early in the Revolution, but was restored to the duke of Modena at the peace of 1814.