CHIVASSO, a town, and episcopal see of Piedmont, Italy, province of Turin, I 8m. N.E. by rail from that town, 600ft. above sea-level. Pop. (1921) 5,359 (town) ; 10,932 (commune). It is on the left bank of the Po, near the influx of the Orco. The cathedral (I 5th century) has a fine facade, with statues in terra cotta. A tower remains of the old castle of the marquesses of Monferrato, who possessed the town from 1164 to 1435. It was an important fortress in the middle ages and until the French dis mantled it (1804). Chivasso, on the main line from Turin to Milan, is the junction of branches for Aosta, Asti, and Casole Monferrato.