CHIERI, a town and episcopal see of Piedmont, Italy, prov ince of Turin, 13m. S.E. by rail and 8m. by road from the town of Turin. Pop. (192 1) 9,385 (town) ; 13,667 (commune). Its Gothic cathedral (1037, rebuilt 1405), is the largest in Piedmont, and has a 13th century octagonal baptistery. Subject to the bishop of Turin in the 9th and loth centuries, it became inde pendent in the 11th century. In 1347 it submitted voluntarily to Count Amedeus VI. of Savoy and finally came under Savoy in the 16th century. In 1785 it was made into a principality of the duke of Aosta. It was an early centre of trade and manufacture; and in the middle of the 15th century produced about 1oo,000 pieces of cotton goods per annum.