Carpi, Diocese of (CARPENSIS).—The city of Carpi is situated in the province of Modena, Central Italy. It belonged originally to the famous Countess Matilda, from whom it passed to the Holy See (1115-1215). From 1215 to 1319 it was subject to Modena, and from the latter date until 1525 was ruled by the Pio, vassals of the Holy See. In 1530 Charles V, who had occupied Carpi since 1525, made it over to Alfonso (I) d’Este, Duke of Ferrara. Carpi was created a see only in 1779, by Pius VI, the first bishop being Francesco Benincasa. Under Julius II it became immediately dependent on the Holy See, having previously been under the jurisdiction of Modena. The cathedral, built by King Aistulf in 756, was entirely rebuilt and richly embellished by Duke Alberto Pio. In 1855 Carpi became a suffragan of Modena. The diocese contains a population of 70,000, with 31 parishes, 50 churches and chapels, 84 secular and 4 regular priests, and 4 religious houses for women.