GRAVINA, an episcopal city of southern Italy, kingdom of Naples, and province of Bari, on the left bank of the Gravina, 37 miles S.W. of Bari. It is surrounded by walls flanked with towers, and has a cathedral and eight other churches, a college, and several convents. Its ancient castle was, during the middle ages, one of the strongholds of the Orsini, to which family the town and neighbourhood still belong. The cattle fair held here on the 20th April is one of the most famous in the kingdom. The vicinity is celebrated for its pasturage and for its breed of horses. Pop. 11,000.